Legal deadline and period calculator
- Free
- No sign-up
- Runs in your browser
Thursday 1 January 2026 · 12 Rajab 1447 AH
Enter the period as set by the provision you are working with.
The period starts on the day after the start day.
Last day of the period
Saturday 31 January 2026
12 Shaʻban 1447 AH · 31/01/2026
- Start date
- Thursday 1 January 2026
- First day counted
- Friday 2 January 2026
- Days in the period
- 30 days
The last day of the period is a Saturday, part of the weekend in Qatar. Check the applicable rules for counting the period when the last day falls on a day off.
The tool does not set legal periods and does not take public holidays into account.
About the deadline and period calculator
Quick facts
- Price
Free - Sign-up
Not needed - Devices
Computer, phone and tablet - Where it runs
In your browser, without sending any data - Period units
Days, weeks, months, years - Hijri calendar
Umm al-Qura, for reference - Weekend
An alert if the last day is a Friday or a Saturday - What it does not do
Set legal periods or take public holidays into account
How to use it
Choose the type of calculation
“Add a period to a date” to find the last day of a period, or “Days between two dates” to count the days between them.
Enter the start date
The date of the judgment, notification or event the period runs from; the tool shows its weekday and Hijri date under it.
Enter the period and its unit
Type the number and choose days, weeks, months or years, as set by the provision you are working with.
Decide whether the start day counts
Leave the option off for the period to start on the next day, or turn it on if the rule you apply counts the start day itself.
Check the result and record it
Check the last day, its weekday and the weekend alert, then copy the result and record it in the case file or the firm’s calendar.
Counting in days or in months: why the result differs
| Start date | Period | Last day | Days counted |
|---|---|---|---|
| 30 | |||
| 28 | |||
| 90 | |||
| 92 |
The start day: inside the period or outside it?
| Start day counted | First day counted | Last day |
|---|---|---|
Why the weekday matters
Why record the deadline on the day of the judgment?
Common questions about calculating deadlines
Enter the judgment date as the “Start date”, type the period as set by the provision governing the step and choose its unit, then decide whether the day of the judgment counts in the period. The tool shows the last day with its weekday and Hijri date, and alerts you if it falls on the weekend.
No. The tool does not set or suggest any legal period; it calculates the period you enter. Refer to the provision in force, or to the firm’s lawyer, to determine the period, then use the tool to work out the last day precisely.
If the start day is not counted, the period starts on the next day; if it is counted, it is the first day of the period, so the last day comes one day earlier. The tool does not count it by default, and shows the first day counted so you can check that it matches the rule you work with.
The tool alerts you, because Friday and Saturday are the weekend in Qatar, but it does not move the deadline. Check the applicable rules for counting the period to see how the day off affects it, and have the step ready before it to be safe.
No, it only knows the days of the week. If a deadline comes close to a public holiday, check its effect yourself under the rules you apply.
Because months differ in length: three months from 1 January 2026 end on 1 April, after 90 days, but from 1 March 2026 they end on 1 June, after 92 days. So enter the period in the unit the provision uses.
Choose “Days between two dates” and enter both dates: the tool shows the number of days between them without counting the first day, the number if both days are counted, and the same span in weeks and in months and days.
The tool shows the matching date in the Umm al-Qura calendar as your browser calculates it, which may differ by a day from the calendar a given authority uses or from the sighting of the new moon. Rely on the Gregorian date for the calculation and on the Hijri one for reference.
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