Learn how to change your time zone in your Smartsheet account.
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You can set your time zone in Account > Personal Settings > Settings> Time Zone.
If your account was initiated via sharing (someone shared an object with you, and you responded to an email asking you to create an account), your time zone is set to the time zone where the request originated.
Time zones and sheets
When using the TODAY() formula, Smartsheet calculates it based on the time zone of the person viewing the sheet.
Automation triggers use the sheet Owner’s time zone.
Time zones and system columns
System columns always use UTC in the back-end, while the display value matches the time zone of the last person to access the sheet. This means that, although the display value is in the sheet viewer's time zone, formulas and API calls using system column data may return based on the UTC time zone.
Pacific Time overrides
When changes are made to a sheet via automation, cell links, or cross-sheet formulas, the whole sheet is converted to Pacific Time. Automation services are hosted by service users with a Pacific Time setting. This means that TODAY() formulas and display system column display values may get updated if you're in a different time zone.