[BUG]: Calendar shows incorrect dates

[metaversepl]

Make sure to only report one bug per issue-report

• This is only one bug report

VRCNext Version

2026.25.6

Describe the bug

When you view the event calendar, the days of the week are incorrect. For example, on June 10th, 2026 its labeled as Tuesday but it should be Wednesday. June 1st should be Monday but its labeled as Sunday. This makes it confusing to know which day of the week an event is supposed to happen.

Does it happen after a restart too?

Yes

Steps to reproduce

No response

Anything else?

No response

[A-c0rN]

This issue still seems to exist. All dates are offset by -1 due to the way that the first day of the week is calculated.

A simple fix would to modify /frontend/modules/calendar/calendar.js and tweak the _buildGrid function on line 177.
Just add 1 to firstDayMon.

[shinyflvre]

Are you sure you don't have funky Windows System Settings? cuz it shows it correctly