UTCI specific time of analysis

HI,

I am analysing UTCI and I am using the script from hydrashare as shown below:

Can you help me in conducting further specific analyses:

  1. Have the heat map result only focusing on specific time and days ( June to August, from 11:00 to 19:00)

  2. Show another heat map from item ~1 analysis, showing the % time exceeding the UTCI 29oC.

Thanks in advance.

Christopher