[Feature Request] VDatePicker: Support non-gregorian calendars
@KaelWD is already working on this.
Since Sep 8, 2025.
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Description
Environment
Vuetify Version: 3.7.7
Vue Version: 3.5.13
Browsers: Chrome 131.0.0.0
OS: Windows
Steps to reproduce
I am experiencing an issue with the Vuetify date picker component when using Persian (Farsi) localization. The days of the week are not displayed correctly. Specifically, the order of the days and the labels do not match the expected Persian calendar format.
Expected Behavior
The date picker should display the days of the month accurately according to the Persian calendar. For example, today's date should be correctly highlighted and match the corresponding date in the Persian calendar. If today is the 23rd of the Persian month, it should be displayed as such.
Actual Behavior
The days of the month are not displayed accurately in the Persian calendar. For instance, today's date, which should be the 23rd of the Persian month, is incorrectly shown as the 13th. This discrepancy makes it difficult to use the date picker correctly for Persian users.
Reproduction Link
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