One convention, stated on every page
Date answers depend on conventions: whether the last day counts, how a month is measured and which days are the weekend. Each tool says which it uses. Whole months always count from the start day, and when that day does not exist in a shorter month, the month ends on its last day (31 January plus one month is 28 February).
Working days use the weekend you choose (Friday–Saturday by default). Public holidays are not removed, because they are announced each year.
Frequently asked questions
Why is my Hijri age higher than my Gregorian age?
A Hijri year has 354 or 355 days, about 11 days fewer than a Gregorian year, so the same lifetime contains more Hijri years.
Is the last day counted?
In the days-between calculator you choose. Age is counted up to, but not including, the date you measure on.
Do working days exclude public holidays?
No, only the weekend you choose. Add public holidays yourself.
How do I count working days between two dates?
Use the days between dates calculator and pick your weekend. Friday and Saturday is standard in Saudi Arabia, while UAE government offices take Saturday and Sunday off.
What date is 90 days from today?
The add days to a date calculator tells you, which is handy for visas, notice periods and probation.
Is anything I enter sent or stored?
No. Every calculation runs in your browser, and nothing you type is sent to us or saved.