2025 Calendar Week Dates. The first calendar week of 2025 starts on monday, december 30, 2024 and ends on sunday, january 5, 2025. This monday start 2025 calendar.
20 rows discover our 2025 interactive calendar with all key dates and holidays. Also holidays, red days, flag days, namedays, days off, and dates for easter, pentecost, and midsummer.
About the author