حاسبة يوم الأسبوع.

Gregorian calendar for every date. Everything is calculated in your browser; nothing you type is uploaded.

Dates are handled in UTC so time zones never shift the day. ISO weeks start on Monday; week 1 contains the year’s first Thursday.

11 October 2026 is a Sunday, day 284 of the year, in ISO week 41; 1 January 2027 still belongs to ISO week 53 of 2026.