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Actually, this is not a technical question, just a question about interpreting ASHRAE 90.1 Appendix G.

I'm referring to 90.1 Prototype Building Models. By default setting for EnergyPlus, Weather File Daylight Saving Period is "Yes". However, it is deliberately changed to "No" in the Prototype Building Models.

!-   ===========  ALL OBJECTS IN CLASS: RUNPERIOD ===========

RunPeriod,
,                        !- Name
1,                       !- Begin Month
1,                       !- Begin Day of Month
,                        !- Begin Year
12,                      !- End Month
31,                      !- End Day of Month
,                        !- End Year
Sunday,                  !- Day of Week for Start Day
No,                      !- Use Weather File Holidays and Special Days
No,                      !- Use Weather File Daylight Saving Period
No,                      !- Apply Weekend Holiday Rule
Yes,                     !- Use Weather File Rain Indicators
Yes;                     !- Use Weather File Snow Indicators

Does this mean that "No" is the correct setting based on ASHRAE 90.1 Appendix G? Or is there no problem with either of these settings (Yes or No)? I couldn't find any mention of Daylight Saving Time in 90.1 and its User Manual.

Actually, this is not a technical question, just a question about interpreting ASHRAE 90.1 Appendix G.

I'm referring to 90.1 Prototype Building Models. By default setting for EnergyPlus, Use Weather File Daylight Saving Period is "Yes". However, it is deliberately changed to "No" in the Prototype Building Models.

!-   ===========  ALL OBJECTS IN CLASS: RUNPERIOD ===========

RunPeriod,
,                        !- Name
1,                       !- Begin Month
1,                       !- Begin Day of Month
,                        !- Begin Year
12,                      !- End Month
31,                      !- End Day of Month
,                        !- End Year
Sunday,                  !- Day of Week for Start Day
No,                      !- Use Weather File Holidays and Special Days
No,                      !- Use Weather File Daylight Saving Period
No,                      !- Apply Weekend Holiday Rule
Yes,                     !- Use Weather File Rain Indicators
Yes;                     !- Use Weather File Snow Indicators

Does this mean that "No" is the correct setting based on ASHRAE 90.1 Appendix G? Or is there no problem with either of these settings (Yes or No)? I couldn't find any mention of Daylight Saving Time in 90.1 and its User Manual.

Actually, this is not a technical question, just a question about interpreting ASHRAE 90.1 Appendix G.

I'm referring to 90.1 Prototype Building Models. By default setting for EnergyPlus, Use Weather File Daylight Saving Period is "Yes". However, it is deliberately changed to "No" in the Prototype Building Models.

!-   ===========  ALL OBJECTS IN CLASS: RUNPERIOD ===========

RunPeriod,
,                        !- Name
1,                       !- Begin Month
1,                       !- Begin Day of Month
,                        !- Begin Year
12,                      !- End Month
31,                      !- End Day of Month
,                        !- End Year
Sunday,                  !- Day of Week for Start Day
No,                      !- Use Weather File Holidays and Special Days
No,                      !- Use Weather File Daylight Saving Period
No,                      !- Apply Weekend Holiday Rule
Yes,                     !- Use Weather File Rain Indicators
Yes;                     !- Use Weather File Snow Indicators

Does this mean that "No" is the correct setting based on ASHRAE 90.1 Appendix G? Or is there no problem with either of these settings (Yes or No)? I couldn't find any mention of Daylight Saving Time in 90.1 and its User Manual.