How many days does May 1980 have?

May 1980 has 31 days. It starts on Thursday and ends on Saturday.

What ISO week does May 1980 start in?

1 May 1980 falls in ISO week 18. Weeks run Monday–Sunday per ISO 8601.

The calendar on this page marks every national public holiday of Iran in May 1980 in red, with joint/regional days in amber.

ایران has 13 official public holidays in 2026, listed above with their exact dates.

The first 2026 public holiday in ایران is پیروزی انقلاب اسلامی, on ۲۲ بهمن.

Use the caldays long-weekend planner for ایران to find every bridge day and turn a few days of leave into a longer break.

خانه/Iran 1980/اردیبهشت

Kalender bulan

دوشنبه

سه‌شنبه

چهارشنبه

پنجشنبه

جمعه

شنبه

یکشنبه

Iran · 1980

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