Classic monthly
One month per page with holidays, moon phases and notes.
Portrait
May 2021 Calendar
May 2021 calendar templates
4 styles in 4 colors (sage, mist blue, apricot and ink). Click a template to preview it above, pick a color, then download a free PDF or PNG.
Holidays & observances in May 2021
- Sun, May 9Mother's DayObservance
- Mon, May 31Memorial DayFederal holiday
Moon phases
- Last quarter Tue, May 4
- New moon Wed, May 12
- First quarter Wed, May 19
- Full moon Wed, May 26
About May 2021
- Days31
- Starts onSaturday
- Ends onMonday
- ISO weeks17–22
- Weekdays (Mon–Fri)21
- Working days after federal holidays20
This printable May 2021 calendar marks Memorial Day, shows moon phases and includes a notes area. Use the options to start the week on Sunday or Monday, add ISO week numbers, or switch to the planner template with a to-do column.
Calendar guides
Learn more about holidays, week numbers, moon phases and printing.
Calendar basics
Moon phases: how they work and when the full moons are
Why the Moon has phases, how long a lunar cycle lasts, traditional full moon names, and a list of full moon dates for the coming year.
Read guide · 2 min → HolidaysUS federal holidays explained
All 11 US federal holidays, how their dates are set, and the observed-day rule that moves weekend holidays to Friday or Monday — with a full table for the coming year.
Read guide · 2 min → Ideas12 practical ways to use a printable calendar
Ideas for getting more from a printable calendar: family planning, meal plans, habit tracking, chores, budgets, school terms, travel countdowns and more.
Read guide · 2 min →