Overview of the year 2025:
| Item | Value |
|---|---|
| Leap year | No (365 days) |
| Total days | 365 |
| First day (Jan 1) | 2025-01-01 Wednesday |
| Last day (Dec 31) | 2025-12-31 Wednesday |
| ISO weeks | 52 |
| Week 1 (Monday) | 2024-12-30 |
| Week 1 (Sunday) | 2025-01-05 |
2025 Year Facts
This page summarizes the key date facts of 2025: leap year or not, total days, start/end weekdays, ISO week count and the week-1 range.
Features
- Leap-year check — 2025 is not a leap year (365 days).
- Start, end and weeks — Lists the start/end weekdays and the total ISO week count.
How to use
- This page is a quick-reference card for the year 2025.
FAQ
Why was 1900 not a leap year?
The leap rule has an exception: a year divisible by 100 is a leap year only if it is also divisible by 400. 1900 is divisible by 100 but not by 400, so it is common; 2000 is divisible by 400, so it is leap.