# Configuring daylight savings time

Use the following procedure to configure the start and end of the daylight savings time period.

## Before you begin

Recurring daylight savings time must be disabled.

## Procedure

1. From the navigation tree, double-click Edit.
2. In the Edit tree, click SNTP/Clock.
3. In the work area, click the Daylight Saving Time tab.
4. In the Offset field, type a value.
5. In the TimeZoneAcronym field, type a value.
6. In the StartYear field, type a value.
7. In the StartMonth field, type a value.
8. In the StartDay field, type a value.
9. In the StartHour field, type a value.
10. In the StartMinutes field, type a value.
11. In the EndYear field, type a value.
12. In the EndMonth field, type a value.
13. In the EndDay field, type a value.
14. In the EndHour field, type a value.
15. In the EndMinutes field, type a value.
16. To enable daylight savings time, click the Enabled check box. To disable daylight savings time, clear the check box.
17. Click Apply.

## Variable definitions

The following table describes configuring daylight savings time.

Variable | Value
--- | ---
Offset | Specifies the change of time in minutes when daylight savings time (DST) starts and ends. The offset is added when DST starts and is subtracted when DST time ends.
TimeZoneAcronym | Specifies the time zone acronym to display.
StartYear | Specifies the year to start DST.
StartMonth | Specifies the month to start DST.
StartDay | Specifies the day to start DST.
StartHour | Specifies the hour to start DST.
StartMinutes | Specifies minutes in the specific hour to start DST.
EndYear | Specifies the year to end DST.
EndMonth | Specifies the month to end DST.
EndDay | Specifies the day to end DST.
EndHour | Specifies the hour to end DST.
EndMinutes | Specifies the minutes in the specific hour to end DST.
Enabled | Specifies if DST is enabled or disabled. Check to enable, clear to disable.
| Important
| Configure all DST fields before you enable DST.