To indicate whether the time in the time picker control is Standard time or Daylight Savings time, the clock to the left of the control has a shaded segment if the time is in a Daylight Savings period. When in Standard time, the clock does not have a shaded segment.
For example, this icon appears when the time picker's value is within the local Daylight Savings period:
This icon appears when the time picker's value is within the local Standard time period:
If the Daylight Savings transition involves duplicate hours, you can use the spin controls (or Up and Down arrow keys) to select the hour you want.
Note: In order for the Process Analyst to be able to indicate that Daylight Savings is in effect, the Automatically adjust clock for daylight saving changes option on the Date and Time Properties dialog box needs to be enabled, as indicated below:
Daylight savings (local time)