Persian (Jalali) Next Anniversary

Enter the date values and the tool computes the result for the persian calendar system.

1. 1

   Step 1

   Enter your date in the Persian (Jalali) calendar: day, month, and year.

2. 2

   Step 2

   We apply the Persian (Jalali) epoch and leap rules — the Persian year ≈ 2026 − 621 = 1405.

3. 3

   Step 3

   Read the result exact to the day — Persian (Jalali) leap years (365–366 days) applied automatically.

• 1

  This Persian (Jalali) Next Anniversary follows Persian (Jalali) calendar rules — its own epoch, month lengths, and leap years — so the result can differ from a Gregorian-based calculation of the same date; treat the calendar system as part of the input.

• 2

  Time zones can move a Persian (Jalali) date by a full day around midnight: today in one zone is still yesterday or tomorrow in another, so anchor the calculation to the zone your event actually follows before you enter anything.

• 3

  Watch century boundaries and very old dates in the Persian (Jalali) system: historical calendars dropped or added days when they were adopted, which is invisible in daily use but material for long-range historical calculations here.

• Epochs are not interchangeable: every calendar owns its day zero, and year arithmetic borrowed across systems shifts an anniversary projection by years. Confirm the persian (jalali) epoch (the Persian year ≈ 2026 − 621 = 1405) before comparing dates.

• Leap rules differ between the Persian (Jalali) calendar and the simplified school shortcut, so filters like “divisible by 4” are not enough. Let the tool apply the persian (jalali) intercalation rule to the actual year you entered.