Support

Help, bug reports and feature requests for DateTime Picker for Google Sheets™.

Contact support

Email mo.mustkem@gmail.com with "DateTime Picker" in the subject. You will usually get a reply within 2 business days.

Reporting a problem

Please include:

What you did, for example the cells you selected and the date, time and time zone you picked
What you expected to happen
What actually happened, with a screenshot if possible

Frequently asked questions

Where is the menu? Open a spreadsheet and go to Extensions > DateTime Picker. If it does not appear, reload the spreadsheet.

What format is inserted? ISO 8601 text, for example 2026-11-12T16:00:00.000Z for GMT+0 or 2026-11-12T21:30:00.000+05:30 for another time zone. You can switch to a formatted date value in Settings.

How do I change the default time zone? Open Extensions > DateTime Picker > Settings. The default is GMT+0.

How do I uninstall it? Go to Extensions > Add-ons > Manage add-ons, find DateTime Picker and choose Uninstall.