Knowledge Drop

Does Looker account for daylight savings?

  • 15 June 2021
  • 0 replies

Userlevel 5

Last tested: Dec 18, 2018


The timezone rules for the specified timezone will be followed. This can sometimes introduce subtle logic bugs. For example, the timezone code `ESTEDT` follows the rules of daylight savings for the Eastern Time Zone of the United States.

The timezone code `America/New_York` is identical to `ESTEDT` for all dates after the Uniform Time Act of 1966. But prior to 1966 `ESTEDT` is EST only while `America/New_York` follows the daylight savings time rules as observed in NYC.


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