Monthly calendar
May 2026 Calendar
May 2026 starts on Friday and has 31 days.
Date Time Encyclopedia answer, with calculation details and assumptions below.
The first day of May 2026 is Friday, May 1, 2026 and the last day is Sunday, May 31, 2026.
Snapshot
May 2026 Calendar
May 2026 starts on Friday and has 31 days.
The first day of May 2026 is Friday, May 1, 2026 and the last day is Sunday, May 31, 2026.
- First day
- Friday, May 1, 2026
- Last day
- Sunday, May 31, 2026
- Days in month
- 31
- First ISO week
- 2026-W18
May 2026 calendar
Method
Month lengths are calculated with Gregorian calendar rules. ISO week labels follow the Monday-start ISO week-date system.
Monthly calendar context
May 2026 Calendar shows the month length, first weekday, last weekday, and ISO week context for planning by week or by date.
Compare adjacent years
The same month can start on different weekdays across years, so adjacent-year links are useful for recurring schedules.
Related Lookups
FAQ
How many days are in May 2026?
May 2026 has 31 days.
Which week numbering system is shown?
ISO week labels follow the Monday-start ISO week-date system.