Day of the Week Finder

Find out what day of the week any date falls on - past, present, or future.

How to use day of the week finder

  1. Select any valid date
  2. Read the weekday and weekend indicator
  3. Check its ordinal day and ISO week

Worked example

October 14, 2026

Wednesday

How the result is calculated

The weekday comes from the Gregorian calendar date in your browser. ISO week years can differ from calendar years near New Year.

Inputs stay in your browser. You can use this tool without joining the waitlist or creating an account.

From a calculation to a daily glance

Keep the whole month in view.

Use a monthly calendar widget to see dates and weekdays together with your actual events.

  1. 1Add the events you want to see to your calendar.
  2. 2Enable that calendar in the app.
  3. 3Add Monthly Calendar; use Edit Widget → Design to choose its look.
Get early accessExplore widget designs

Web results do not automatically sync to the app. Setup is manual; calendar events appear through your enabled calendars.

February
SMTWTFS
1
2
3
4
5
6
7
Birthday ♡
8
9
10
11
12
13
14
MeetingsCelebration
15
16
17
18
19
20
21
CelebrationWorkshopMeetingProject reviewTeam dinner
22
23
24
25
26
27
28
Vacation
1
2
3
4
5
6
7
Monthly Calendar · example design from the app

Frequently asked questions

What day of the week was a particular date?
Enter any past, present, or future date and the finder instantly tells you the weekday it falls on, whether it's a weekend, its position in the year, and its ISO week number.
What day of the week was I born?
Set the date to your date of birth and the tool shows the exact weekday you were born on. It works for any date in the past or far into the future.
Can I see all the weekdays in a month at once?
Yes. The Monthly Calendar Widgets month grid shows every weekday and date together on your iPhone Home Screen, so you can scan the whole month without opening an app.

More free calendar tools