Persian (Jalali) Date Difference

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

1. 1

   Step 1

   Enter both dates in full under the Persian (Jalali) calendar: day, month, and year each.

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) Date Difference 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

  Before a Persian (Jalali) date goes into a booking or a flight, re-enter it in a second tool as a cross-check — pages like Persian (Jalali) Date Difference apply fixed rules and cannot warn about a transposed input digit.

• 3

  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.

• Inclusive versus exclusive counting: two endpoints five days apart yield 4 or 5 days depending on whether the last day counts. Decide the convention for your Persian (Jalali) calculation first — contracts and payroll rarely agree on it.

• Year-length drift compounds quietly: a Persian (Jalali) year averages about 365 days, so the same month-day is a different day count every year and a date calculation from one year cannot be scaled to another. Recompute across the exact years involved.