# \#schedule

**URL:** https://discourse.ladybug.tools/tag/schedule/37.md

[Latest](https://discourse.ladybug.tools/latest.md) · [Categories](https://discourse.ladybug.tools/categories.md) · [Tags](https://discourse.ladybug.tools/tags.md)

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## [HB Blend ProgramTypes produces inconsistent schedules](https://discourse.ladybug.tools/t/hb-blend-programtypes-produces-inconsistent-schedules/40885)

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**Author:** [@gzorzeto](https://discourse.ladybug.tools/u/gzorzeto)\
**Replies:** 0\
**Last updated:** [October 29, 2026, 5:07pm UTC](https://discourse.ladybug.tools/t/hb-blend-programtypes-produces-inconsistent-schedules/40885 "2026-10-29T17:07:31Z")

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Hi everyone, I’ve been comparing multi vs single-zone models, and I might have spotted a problem with the HB Blend ProgarmTypes component. I think the averaging method works fine for the design load capacities, but fail…

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## [Fixed Interval Schedule crashes on leap year](https://discourse.ladybug.tools/t/fixed-interval-schedule-crashes-on-leap-year/40798)

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**Author:** [@MatteoMerli](https://discourse.ladybug.tools/u/MatteoMerli)\
**Replies:** 5\
**Last updated:** [September 23, 2026, 9:42am UTC](https://discourse.ladybug.tools/t/fixed-interval-schedule-crashes-on-leap-year/40798 "2026-09-23T09:42:11Z")

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Hi @chris I ran into an issue using fixed schedules with leap years. The Fixed Interval Schedule component expects 8760 values (standard year, timestep = 1), but I am running a leap year (2024), and if i supply 8784 va…

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## [Illogical shift depending on week start day in HB Schedule to Data component](https://discourse.ladybug.tools/t/illogical-shift-depending-on-week-start-day-in-hb-schedule-to-data-component/40296)

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**Author:** [@egerlid](https://discourse.ladybug.tools/u/egerlid)\
**Replies:** 2\
**Last updated:** [April 23, 2026, 9:50am UTC](https://discourse.ladybug.tools/t/illogical-shift-depending-on-week-start-day-in-hb-schedule-to-data-component/40296 "2026-04-23T09:50:14Z")

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Hi forum and @chris! I have just noticed that the week\_start\_day input in the HB Schedule to Data component has some illogical shifts depending on the day I input. I am using LBT 1.8 but also checked with version 1.10 a…

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## [Hourly base operation schedule for Hourly Control of PV and Battery Operation in ElectricLoadCenter Objects::PVWatts, distribution, and NCM LiIon batteries](https://discourse.ladybug.tools/t/hourly-base-operation-schedule-for-hourly-control-of-pv-and-battery-operation-in-electricloadcenter-objects-pvwatts-distribution-and-ncm-liion-batteries/36759)

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**Author:** [@behnammmohseni](https://discourse.ladybug.tools/u/behnammmohseni)\
**Replies:** 1\
**Last updated:** [June 5, 2025, 6:50pm UTC](https://discourse.ladybug.tools/t/hourly-base-operation-schedule-for-hourly-control-of-pv-and-battery-operation-in-electricloadcenter-objects-pvwatts-distribution-and-ncm-liion-batteries/36759 "2025-06-05T18:50:32Z")

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Hi there, I hope this message finds you well. I am currently working on configuring the ElectricLoadCenter:Distribution, ElectricLoadCenter:Storage:LiIonNMCBattery, and ElectricLoadCenter:Generators:PVWatts objects, an…

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## [Seasonal schedule error 1. Solution exception:'ScheduleFixedInterval' object has no attribute 'add\_rule' with fixed interval schedule as base schedule](https://discourse.ladybug.tools/t/seasonal-schedule-error-1-solution-exception-schedulefixedinterval-object-has-no-attribute-add-rule-with-fixed-interval-schedule-as-base-schedule/36694)

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**Author:** [@Nicholaskerr](https://discourse.ladybug.tools/u/Nicholaskerr)\
**Replies:** 2\
**Last updated:** [May 22, 2025, 12:00am UTC](https://discourse.ladybug.tools/t/seasonal-schedule-error-1-solution-exception-schedulefixedinterval-object-has-no-attribute-add-rule-with-fixed-interval-schedule-as-base-schedule/36694 "2025-05-22T00:00:22Z")

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Hi all, I am trying to construct a seasonal schedule based on analysis period that overwrites a base fixed interval schedule and am getting this error returned

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## [Hot Water L/hr-m2 for Single Family Home?](https://discourse.ladybug.tools/t/hot-water-l-hr-m2-for-single-family-home/35706)

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**Author:** [@edpmay](https://discourse.ladybug.tools/u/edpmay)\
**Replies:** 0\
**Last updated:** [January 22, 2025, 5:58pm UTC](https://discourse.ladybug.tools/t/hot-water-l-hr-m2-for-single-family-home/35706 "2025-01-22T17:58:48Z")

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I am trying to build up a Program for a single-family home based on the NREL Build America House Simulation Protocol and am a little confused? I wonder if anyone has any suggestions or insight on these? Specifically I am…

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## [Importing Compact Schedule Objects in IDF format](https://discourse.ladybug.tools/t/importing-compact-schedule-objects-in-idf-format/24483)

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**Author:** [@erydjunaedy](https://discourse.ladybug.tools/u/erydjunaedy)\
**Replies:** 0\
**Last updated:** [April 2, 2024, 7:08am UTC](https://discourse.ladybug.tools/t/importing-compact-schedule-objects-in-idf-format/24483 "2024-04-02T07:08:42Z")

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All, I cannot import my schedules in IDF format, despite doing the right thing (I think). I have put my schedules in a IDF file (schedule.idf), in the right folder, which is: C:\\Users\\USERNAME\\AppData\\Roaming\\ladybug\_…

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## [ASHRAE lighting schedules](https://discourse.ladybug.tools/t/ashrae-lighting-schedules/22763)

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**Author:** [@savage](https://discourse.ladybug.tools/u/savage)\
**Replies:** 14\
**Last updated:** [October 17, 2023, 10:48pm UTC](https://discourse.ladybug.tools/t/ashrae-lighting-schedules/22763 "2023-10-17T22:48:17Z")

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I was trying to figure out why my MidriseApartment::Apartment energy model had a substantially lower lighting EUI than equipment EUI despite both having a similar baseline energy density, and I found the lighting schedul…

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## [An ventilation control schedule error for DF Window Opening](https://discourse.ladybug.tools/t/an-ventilation-control-schedule-error-for-df-window-opening/19882)

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**Author:** [@kanshan](https://discourse.ladybug.tools/u/kanshan)\
**Replies:** 4\
**Last updated:** [October 13, 2023, 9:47pm UTC](https://discourse.ladybug.tools/t/an-ventilation-control-schedule-error-for-df-window-opening/19882 "2023-10-13T21:47:54Z")

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Hello, everyone, I’m customizing my window opening schedule in Dragonfly Model for a residential building block energy model. however, when I transmitted the customized schedule to the DF Window Opening component, an e…

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## [Can I apply to my own programs in dragonfly instead of HB Buildings programs?](https://discourse.ladybug.tools/t/can-i-apply-to-my-own-programs-in-dragonfly-instead-of-hb-buildings-programs/21963)

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**Author:** [@edakosemurathan](https://discourse.ladybug.tools/u/edakosemurathan)\
**Replies:** 1\
**Last updated:** [June 29, 2023, 8:02pm UTC](https://discourse.ladybug.tools/t/can-i-apply-to-my-own-programs-in-dragonfly-instead-of-hb-buildings-programs/21963 "2023-06-29T20:02:56Z")

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Hello, In the settlement I am trying to create, I use the Dragonfly plugin instead of Honeybee because the building I am working on consists of too much volume. However, I couldn’t figure out how to connect the schedule…

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## [Honeybee occupancy schedule](https://discourse.ladybug.tools/t/honeybee-occupancy-schedule/21433)

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**Author:** [@DreamADreammmm2023](https://discourse.ladybug.tools/u/DreamADreammmm2023)\
**Replies:** 0\
**Last updated:** [April 11, 2023, 8:53pm UTC](https://discourse.ladybug.tools/t/honeybee-occupancy-schedule/21433 "2023-04-11T20:53:53Z")

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Hi all, I have another question regarding the options for occupancy schedule. As there’re no options for residential buildings, does anyone know which option I should choose in order to generate a more realistic result…

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## [Annual Daylight - Analysis Period](https://discourse.ladybug.tools/t/annual-daylight-analysis-period/21358)

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**Author:** [@MeghaSajeev](https://discourse.ladybug.tools/u/MeghaSajeev)\
**Replies:** 3\
**Last updated:** [April 5, 2023, 6:41am UTC](https://discourse.ladybug.tools/t/annual-daylight-analysis-period/21358 "2023-04-05T06:41:12Z")

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Hi, I am working on the annual daylight analysis using LBT 1.6. How do we input the analysis period in the recipe as in the legacy versions? I want to analyse the daylight for 2920 hours ( 8 hours a day - from 9 AM TO 5 …

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## [The problem of 'HB Fixed Interval Schedule' in heating and cooling schedule setting](https://discourse.ladybug.tools/t/the-problem-of-hb-fixed-interval-schedule-in-heating-and-cooling-schedule-setting/19637)

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**Author:** [@omen](https://discourse.ladybug.tools/u/omen)\
**Replies:** 0\
**Last updated:** [September 30, 2022, 11:20am UTC](https://discourse.ladybug.tools/t/the-problem-of-hb-fixed-interval-schedule-in-heating-and-cooling-schedule-setting/19637 "2022-09-30T11:20:44Z")

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Hi everyone. I would like to try to set up a schedule for heating and cooling of the HVAC system. The purpose is to have heating from November 1st to March 15th of the following year and cooling from June 14th to August…

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## [1. Solution exception:'ScheduleFixedInterval' object has no attribute 'default\_day\_schedule'](https://discourse.ladybug.tools/t/1-solution-exception-schedulefixedinterval-object-has-no-attribute-default-day-schedule/19516)

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**Author:** [@Mohammad.hakim.a](https://discourse.ladybug.tools/u/Mohammad.hakim.a)\
**Replies:** 3\
**Last updated:** [September 20, 2022, 4:35pm UTC](https://discourse.ladybug.tools/t/1-solution-exception-schedulefixedinterval-object-has-no-attribute-default-day-schedule/19516 "2022-09-20T16:35:01Z")

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Hello I created a schedule by FixedIntervalSchedule for set points and made a program. Then, I wanted to use DeconstrProgram, but I encountered an error message. Mohammad

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## [Errors in export to open studio](https://discourse.ladybug.tools/t/errors-in-export-to-open-studio/1065)

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**Author:** [@SamueldeVries](https://discourse.ladybug.tools/u/SamueldeVries)\
**Replies:** 16\
**Last updated:** [June 16, 2022, 4:24pm UTC](https://discourse.ladybug.tools/t/errors-in-export-to-open-studio/1065 "2022-06-16T16:24:59Z")

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Hi everyone! I’m getting an error and a warning when exporting to openstudio: Does anyone have any thoughts on how to solve this? Gr, Sam

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## [Daylight analysis schedule interpretations](https://discourse.ladybug.tools/t/daylight-analysis-schedule-interpretations/18314)

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**Author:** [@TrilithStone](https://discourse.ladybug.tools/u/TrilithStone)\
**Replies:** 4\
**Last updated:** [May 23, 2022, 3:22pm UTC](https://discourse.ladybug.tools/t/daylight-analysis-schedule-interpretations/18314 "2022-05-23T15:22:27Z")

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Dear developer team, I was wondering if you could send any link to show the interpretations of what the detail contents inside each of specific schedules so we could make an adjustment to other region\`s protocol. Like t…

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## [PMV simulation errors with custom occupancy schedules](https://discourse.ladybug.tools/t/pmv-simulation-errors-with-custom-occupancy-schedules/17222)

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**Author:** [@Rhynoxas](https://discourse.ladybug.tools/u/Rhynoxas)\
**Replies:** 7\
**Last updated:** [March 10, 2022, 10:41am UTC](https://discourse.ladybug.tools/t/pmv-simulation-errors-with-custom-occupancy-schedules/17222 "2022-03-10T10:41:46Z")

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Hi everyone, I started using the LBT 1.4 version and I must say that compared to version 1.3 it is really more stable. However someone can tell me why every time I insert occupancy schedules the HB PMV component gives me…

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## [Schedule to data giving confusing results?](https://discourse.ladybug.tools/t/schedule-to-data-giving-confusing-results/17479)

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**Author:** [@edpmay](https://discourse.ladybug.tools/u/edpmay)\
**Replies:** 4\
**Last updated:** [February 15, 2022, 6:33pm UTC](https://discourse.ladybug.tools/t/schedule-to-data-giving-confusing-results/17479 "2022-02-15T18:33:17Z")

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Hi all, I’m not sure if this a small bug, or if this is the expected behavior and I just don’t quite understand what it means? I was just trying to grab a single week occupancy profile to review with a building owner, …

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## [Cull values according to occupied hours](https://discourse.ladybug.tools/t/cull-values-according-to-occupied-hours/12425)

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**Author:** [@furtonb](https://discourse.ladybug.tools/u/furtonb)\
**Replies:** 2\
**Last updated:** [February 15, 2022, 6:12pm UTC](https://discourse.ladybug.tools/t/cull-values-according-to-occupied-hours/12425 "2022-02-15T18:12:12Z")

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Hello, I have an EP output SQL file from another application which I try to analyse with LBT. I calculated the PMV values hourly for each room, I exported the results as an SQL file to parse it with the HB Read Custom …

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## [Summer design day setpoint temperature for weekly schedule](https://discourse.ladybug.tools/t/summer-design-day-setpoint-temperature-for-weekly-schedule/17409)

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**Author:** [@kentakahas](https://discourse.ladybug.tools/u/kentakahas)\
**Replies:** 3\
**Last updated:** [February 14, 2022, 1:45am UTC](https://discourse.ladybug.tools/t/summer-design-day-setpoint-temperature-for-weekly-schedule/17409 "2022-02-14T01:45:46Z")

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For the HB Weekly Schedule component, if there is no \_ summer\_des\_ connected, it automatically sets it as the day schedule with the highest average value. I see this working for internal loads, but for setpoint temperat…

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## [How many schedule can I attach to these components?](https://discourse.ladybug.tools/t/how-many-schedule-can-i-attach-to-these-components/17180)

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**Author:** [@Rhynoxas](https://discourse.ladybug.tools/u/Rhynoxas)\
**Replies:** 1\
**Last updated:** [January 21, 2022, 5:45pm UTC](https://discourse.ladybug.tools/t/how-many-schedule-can-i-attach-to-these-components/17180 "2022-01-21T17:45:01Z")

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In my analysis project there are 3 people, so, when I build the program type, is it right to attach to the “HB ProgramType” 3 “HB People” components with their own occupancy schedule? And in the HB PMV Comfort Map compon…

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## [Assign names to schedule](https://discourse.ladybug.tools/t/assign-names-to-schedule/16890)

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**Author:** [@Rhynoxas](https://discourse.ladybug.tools/u/Rhynoxas)\
**Replies:** 3\
**Last updated:** [December 20, 2021, 3:23am UTC](https://discourse.ladybug.tools/t/assign-names-to-schedule/16890 "2021-12-20T03:23:33Z")

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Hi everyone, I’m new here! I have a problem, obviously… When I create a new schedule with the “HB Fixed Interval Schedule”, the added output schedule to the EP library has the name of the interval time, whatever name i …

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## [Get program of zone in LBT](https://discourse.ladybug.tools/t/get-program-of-zone-in-lbt/15530)

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**Author:** [@Mohammad.hakim.a](https://discourse.ladybug.tools/u/Mohammad.hakim.a)\
**Replies:** 3\
**Last updated:** [August 20, 2021, 4:52am UTC](https://discourse.ladybug.tools/t/get-program-of-zone-in-lbt/15530 "2021-08-20T04:52:03Z")

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Hello dear @chris I want to do getEPSchedules similar to the previous version, but when I do this it just shows the programs of the last component and does not show the programs entered before. where is the problem from…

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## [Daysim schedule](https://discourse.ladybug.tools/t/daysim-schedule/15425)

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**Author:** [@hiwa](https://discourse.ladybug.tools/u/hiwa)\
**Replies:** 1\
**Last updated:** [August 8, 2021, 10:30pm UTC](https://discourse.ladybug.tools/t/daysim-schedule/15425 "2021-08-08T22:30:39Z")

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hello i want to use the light schedule who gain from daysim annual profiles component for light schedule in energy plus run .but when i connected in energy plus light schedule gives error . and when i dont connect the…

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## [Create schedule name Honeybee 1.1 - Random added suffix](https://discourse.ladybug.tools/t/create-schedule-name-honeybee-1-1-random-added-suffix/13025)

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**Author:** [@fadysherif](https://discourse.ladybug.tools/u/fadysherif)\
**Replies:** 2\
**Last updated:** [July 21, 2021, 8:17pm UTC](https://discourse.ladybug.tools/t/create-schedule-name-honeybee-1-1-random-added-suffix/13025 "2021-07-21T20:17:24Z")

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Hello everybody, Every time I create a new schedule in Honeybee 1.1 and give it a name, the output adds a suffix of random letters and numbers to the name. Does anybody know how to fix that? Also, how can I add the new…

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## [Energyplus simulation issue](https://discourse.ladybug.tools/t/energyplus-simulation-issue/12297)

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**Author:** [@mLyhne](https://discourse.ladybug.tools/u/mLyhne)\
**Replies:** 1\
**Last updated:** [May 15, 2021, 8:17am UTC](https://discourse.ladybug.tools/t/energyplus-simulation-issue/12297 "2021-05-15T08:17:22Z")

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Hi! We’ve been having issues with the runEnergySimulation component today. The fault seems to not be particular to our PCs, as the fault suddently appeared on both of them, seemingly unrelated to each other. The fault w…

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## [Hneybee can't run simulation with heating/cooling set point schedule](https://discourse.ladybug.tools/t/hneybee-cant-run-simulation-with-heating-cooling-set-point-schedule/11967)

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**Author:** [@hamed.sangin](https://discourse.ladybug.tools/u/hamed.sangin)\
**Replies:** 2\
**Last updated:** [February 4, 2021, 5:15am UTC](https://discourse.ladybug.tools/t/hneybee-cant-run-simulation-with-heating-cooling-set-point-schedule/11967 "2021-02-04T05:15:02Z")

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I create an annual schedule for cooling and heating fig1 and fig2 but it can run the simulation fig3 fig1: fig2: fig3: Algorithm1.2(0.5).gh (799.6 KB)

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## [Exporting schedule from Honeybee to the Open Studio model](https://discourse.ladybug.tools/t/exporting-schedule-from-honeybee-to-the-open-studio-model/10545)

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**Author:** [@Pol\_IT](https://discourse.ladybug.tools/u/Pol_IT)\
**Replies:** 3\
**Last updated:** [September 26, 2020, 6:40pm UTC](https://discourse.ladybug.tools/t/exporting-schedule-from-honeybee-to-the-open-studio-model/10545 "2020-09-26T18:40:43Z")

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Hi, I have a question about exporting schedule from Honeybee to the Open Studio model. I created a zone to which I assigned Office Zone Programs, in particular Closed Office and then I write the OSM file with the “expor…

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## [Schedule & type is null](https://discourse.ladybug.tools/t/schedule-type-is-null/10571)

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**Author:** [@Pol\_IT](https://discourse.ladybug.tools/u/Pol_IT)\
**Replies:** 7\
**Last updated:** [August 12, 2020, 2:03pm UTC](https://discourse.ladybug.tools/t/schedule-type-is-null/10571 "2020-08-12T14:03:45Z")

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Hi, when I run the simulation of my model with the “exportToOpenStudio” component the simulation gives me an error “1. Solution exception: openstudio :: model :: Schedule & type is null”. Can someone help me solve it,…

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## [Schedule for fan-driven natural ventilation](https://discourse.ladybug.tools/t/schedule-for-fan-driven-natural-ventilation/8634)

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**Author:** [@farhang.tahmasebi](https://discourse.ladybug.tools/u/farhang.tahmasebi)\
**Replies:** 2\
**Last updated:** [June 8, 2020, 9:08am UTC](https://discourse.ladybug.tools/t/schedule-for-fan-driven-natural-ventilation/8634 "2020-06-08T09:08:32Z")

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Hi @Chris and @Mostapha, I was wondering if there is any way to assign a schedule to fan-driven ventilation (Type 3) in Honeybee\_Set EP Air Flow. One use-case for this would be to maintain a fixed recommended ventilati…

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