Current Calendar Week
CW 13
March 23 – March 29, 2026
ISO Notation
2026-W13
Week Type
Odd
Quarter
Q1
Week Navigation
Calendar by Year
What Calendar Week is it Today?
Today is Calendar Week 13 (CW 13) of the year 2026.
The current week starts on Monday, March 23, 2026 and ends on Sunday, March 29, 2026.
About ISO Week Numbers
Calendar weeks follow the ISO 8601 international standard. According to this standard:
- Weeks start on Monday
- Week 1 is the week containing the first Thursday of the year
- A year has either 52 or 53 weeks
Even and Odd Weeks
The current CW 13 is an odd week. This distinction is often used for shift schedules, garbage collection, or weekly alternating appointments.