The date in the dayHeaderContent arg repeats the previous day on the day after a time change using Luxon

[tusharnaresh]

Reduced Test Case

https://stackblitz.com/edit/github-aecao6-cxsktn?file=src%2FDemoApp.jsx

Do you understand that if a reduced test case is not provided, we will intentionally delay triaging of your ticket?

• I understand

Which connector are you using (React/Angular/etc)?

React

Bug Description

Getting 30 March date twice for Asia/Beirut timezone when using luxon plugin to format the date. The DST shift will happen on the Asia/Beirut timezone at 31st March 2024 12 am. The offset becomes ftom GMT+2 to GMT+3.

[acerix]

Thanks for the report. I can confirm this seems to be a bug in the Luxon plugin. I updated the demo to show the time and can see it's one hour behind on the day after the time change which causes the date from the previous day to repeat:

https://stackblitz.com/edit/github-aecao6-5bitnh?file=src%2FDemoApp.jsx

As a workaround, you could detect if the date is a duplicate of the previous one, and in that case, add one hour to change it to the next day. Here's an example:

https://stackblitz.com/edit/github-aecao6-tup5w2?file=src%2FDemoApp.jsx

[tusharnaresh]

We are currently creating another dateTime object from the current date by adding 1 hour. We are then checking if the current dateTime object doesn't lie in DST and the new dateTime object lies in DST(using the isInDST property on the luxon date time object). If that's the case we adjust the current date with the difference of offsets between the two objects. This seems to give proper result for timezones that have DST activated at 12 AM. This is a workaround, would really appreciate a proper fix for this.
https://stackblitz.com/edit/github-aecao6-cxsktn?file=src%2FDemoApp.jsx