Calendar and weekdays
You learn to work with weeks and days on the calendar.
How to work it out
- On the calendar each week is a row: a week later is one row down.
- Looking for the third Thursday? Go two rows down from the first one.
- Find the days between two dates by subtracting the dates.
- For the weekday, count on: after 7 days it is the same day again.
A worked example
It is Thursday 12 November. What is the date in 2 weeks?
- 2 weeks is 14 days.
- Add 14 to 12: 12 + 14 = 26.
- It is a Thursday again, so 26 November.
More examples
What is the date of the third Thursday in October?
- Find the first Thursday.
- Then go two rows down: that is the third Thursday.
How many days is it from 12 to 30 October?
- Subtract the dates: 30 − 12 = 18.
- It is 18 days.
Try it yourself
November 2026
MonTueWedThuFriSatSun123456789101112131415161718192021222324252627282930How many days is it from 1 to 16?
October 2026
MonTueWedThuFriSatSun12345678910111213141516171819202122232425262728293031How many days is it from October 5 to October 19?
Watch out
You add 2 weeks as 2 days.
A week is 7 days. So 2 weeks is 14 days more.
You count the first day too: from 12 to 30 October would be 19 days.
Subtract the dates: 30 − 12 = 18. You count the days in between, not the start day.
Tips
- A week later is the same day of the week.
Exceptions
- Does the date no longer fit in the month? Carry on in the next month: after 31 October comes 1 November.
Why it works
On the calendar each week is a row. So a week later is exactly one row down, in the same column. That is 7 days more.