# Date custom formatting and startday - inconsistencies

**URL:** <https://community.palantir.com/t/date-custom-formatting-and-startday-inconsistencies/6161>\
**Category:** Product Feedback\
**Tags:** workshop\
**Created:** [March 9, 2026, 11:40am UTC](https://community.palantir.com/t/date-custom-formatting-and-startday-inconsistencies/6161 "2026-03-09T11:40:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![bobbyb](https://yyz1.discourse-cdn.com/palantir/user_avatar/community.palantir.com/bobbyb/32/2097_2.png) [@bobbyb](https://community.palantir.com/u/bobbyb)\
**Post date:** [March 9, 2026, 11:40am UTC](https://community.palantir.com/t/date-custom-formatting-and-startday-inconsistencies/6161/1 "2026-03-09T11:40:42Z")

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A year or so ago you added the ability to change the date formatting in OMA. This works great in tables, lists, and similar places. However, there are some inconsistencies in the implementation that can be very confusing for users.

**Formatting**

- **Inline action forms:** Mon, Mar 2, 2026 (default format, cannot be changed)

- **Date input widget:** Mon, Mar 2, 2026 (default format, cannot be changed)

- **Date and time picker widget:** 2026-03-02 00:00 (date format can be configured)

**Starting day of the week (datepicker)**

- In **inline action forms** , the week starts on Monday.

- In the **date and time picker widget** and **date input widget** , the week starts on Sunday.

It would be nice to be able to visualize dates in the same way across all components.

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**Author:** ![brandon](https://yyz1.discourse-cdn.com/palantir/user_avatar/community.palantir.com/brandon/32/6801_2.png) [@brandon](https://community.palantir.com/u/brandon)\
**Post date:** [March 9, 2026, 12:56pm UTC](https://community.palantir.com/t/date-custom-formatting-and-startday-inconsistencies/6161/2 "2026-03-09T12:56:50Z")

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I second, I asked AIP transform to write day of week as a string and it started the week on Sunday, but extract date part starts the week on Monday

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**Author:** ![83d0819a465803d2c9ed](https://avatars.discourse-cdn.com/v4/letter/8/96bed5/32.png) [@83d0819a465803d2c9ed](https://community.palantir.com/u/83d0819a465803d2c9ed)\
**Post date:** [March 11, 2026, 8:19am UTC](https://community.palantir.com/t/date-custom-formatting-and-startday-inconsistencies/6161/3 "2026-03-11T08:19:25Z")

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Agree with this also

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**Author:** ![system](https://yyz1.discourse-cdn.com/palantir/user_avatar/community.palantir.com/system/32/3_2.png) [@system](https://community.palantir.com/u/system)\
**Post date:** [November 4, 2026, 4:35am UTC](https://community.palantir.com/t/date-custom-formatting-and-startday-inconsistencies/6161/4 "2026-11-04T04:35:45Z")

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Automatically bumped on November 4, 2026, 4:35am UTC