Datetime_format() showing wrong day

[Paul_Miller]

I have {Date} in one column and am trying to list the corresponding day of the week in another column using the following formula:

DATETIME_FORMAT({Date}, “dddd”)

For most of my records, the correct day of the week is returned. However, I have at least one record that is returning the wrong date. December 7, 2019 is a Saturday according the the calendar but AirTable is calculating the day of the week as Sunday.

Very strange. Any help or insight would be appreciated.

[Paul_Miller]

Just realized that time of day set in {Date} is populating other places as +5h. Timezone issue?

[Justin_Barrett · Accepted solution]

Welcome to the community, @Paul_Miller! :grinning_face_with_big_eyes: Very possibly a timezone issue, which could be fixed by using the SET_TIMEZONE() function in conjunction with DATETIME_FORMAT(). In your case, the formula would become:

DATETIME_FORMAT(SET_TIMEZONE({Date}, "America/Chicago"), "dddd")

Replace “America/Chicago” with the proper timezone from this list:

Airtable - Support

Supported timezones for SET_TIMEZONE

The SET_TIMEZONE function will allow you to set the timezone for the data from a date type field. This is written in the form "SET_TIMEZONE(datetime, 'timezone identifier')," in which the...

[Paul_Miller]

Thank you so much. This was it exactly.