Calculators
Date Calculator
Count the days between two dates as calendar days and business days, and see the gap in weeks, months and years, with the option to count both dates.
Weeks From Today Calculator
Find the date 8 weeks from today, or any number of weeks from today, along with the day of the week and the number of days. You can count back to find the date some weeks ago, too. Everything starts from your device’s local date.
Today’s date
Reading your device’s date…
Calculate a date
Quick weeks from today
Result
Your result will appear here.
Dates are worked out in your browser from your device’s date and time zone setting. If your device’s date is wrong, the results will be too.
How to use the Weeks From Today Calculator
The calculator reads today’s date and your time zone from your device when the page opens, and shows the answer for 8 weeks straight away. To work out a different date:
- Type a whole number of weeks, such as 2, 12 or 40. There’s no need to type the word “weeks”.
- Press Calculate, or hit Enter.
- Read the result: the full date, the day of the week, and how many days away it is.
The quick buttons, from +1 week to +52 weeks, skip the typing and show the answer in one tap. To find a date in the past, switch the Count option to Weeks ago; the input and quick buttons then count back from today instead. If you leave the page open past midnight, today’s date and the result move on to the new day by themselves.
What date is 8 weeks from today?
The calculator above answers this as soon as the page loads. It takes today’s date on your device and adds 56 days, because 8 × 7 = 56, then shows the date that lands on. The answer is always the same day of the week as today: 8 weeks from a Thursday is a Thursday.
To check it by hand, add 56 to today’s day of the month and carry any surplus into the following months, using each month’s real length (28, 29, 30 or 31 days). Because 56 days is just under two months, 8 weeks from today usually falls a few days before the same date two months from now.
How weeks from today are calculated
One week is exactly 7 calendar days, so N weeks from today is today’s date plus N × 7 days. The calculator does this on the calendar rather than the clock: it counts whole dates, not 24-hour blocks of time. That matters on the nights when clocks change for daylight saving time, when a day is 23 or 25 hours long. Counting in hours could tip the answer into the wrong date; counting in calendar days can’t.
The browser’s own calendar handles the rest: months of 28, 29, 30 and 31 days, February 29 in leap years, and the move from December into January. Today means today where you are, as set on your device, not in any particular country or on the server that sent you the page.
Weeks to days conversion
To convert weeks to days, multiply by 7.
| Weeks | Days |
|---|---|
| 1 week | 7 days |
| 2 weeks | 14 days |
| 3 weeks | 21 days |
| 4 weeks | 28 days |
| 6 weeks | 42 days |
| 8 weeks | 56 days |
| 10 weeks | 70 days |
| 12 weeks | 84 days |
| 16 weeks | 112 days |
| 20 weeks | 140 days |
| 26 weeks | 182 days |
| 40 weeks | 280 days |
| 52 weeks | 364 days |
52 weeks is 364 days, which is not quite a year. A calendar year has 365 days, or 366 in a leap year, so 52 weeks from today falls one or two days before the same date next year, on the same weekday as today. Likewise, 4 weeks (28 days) is a little shorter than most months, and 26 weeks (182 days) is about six months.
Examples of weeks from today
These worked examples start from fixed dates, so you can follow the arithmetic. For an answer based on today, use the calculator above.
| Starting date | Add | Result |
|---|---|---|
| Monday, January 4, 2027 | 1 week (7 days) | Monday, January 11, 2027 |
| Monday, January 4, 2027 | 8 weeks (56 days) | Monday, March 1, 2027 |
| Thursday, November 18, 2027 | 6 weeks (42 days) | Thursday, December 30, 2027 |
| Thursday, February 10, 2028 | 3 weeks (21 days) | Thursday, March 2, 2028 |
| Wednesday, February 10, 2027 | 3 weeks (21 days) | Wednesday, March 3, 2027 |
| Monday, March 15, 2027 | 52 weeks (364 days) | Monday, March 13, 2028 |
The two 3-week examples show why the calendar matters: starting from February 10, the result is March 2 in a leap year such as 2028, but March 3 in other years, because February has one day fewer.
Counting weeks ago
“Weeks ago” works the same way in reverse: the calculator subtracts N × 7 days from today. It’s useful for questions such as “what was the date 6 weeks ago?”, for working out when something started, or for checking how long ago a date was. As with weeks from today, the answer always falls on the same weekday as today.