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numcal
ISO week number of a date
pick a date
·
Tuesday
·
May 12, 2026
year
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
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2018
2019
2020
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2050
month
May
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Jul
Aug
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Oct
Nov
Dec
Jan
Feb
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Apr
May
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Jul
Aug
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Jan
Feb
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May
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Oct
Nov
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Jan
Feb
Mar
Apr
May
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Aug
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Nov
Dec
Jan
Feb
Mar
Apr
May
day
-48
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Dates
Days between …
Count calendar days between two dates.
Add … days
Move forward N days from a date.
Subtract … days
Move backward N days from a date.
Day of the year
Ordinal of a date within its year (1–366).
Time
Age from …
Years, months, days since a birthday — or any unit.
Weekday of …
Day-of-week name for any date.
Monday after …
Find the next or previous occurrence of a weekday.
Week number of …
ISO 8601 week number.
Time elapsed …
Hours between two wall-clock times.
When will I turn …
Future date when you hit a target age or count.
Every weekday for …
List of recurring dates from a rule.
Zones
Time in …
Live wall-clock in any city.
Time zone of …
Convert a time across two zones, DST-aware.
Time across …
Pin a time and project it into many zones at once.
Business
Business days between …
Mon–Fri count between two dates, holidays excluded.
Add … business days
Move forward N working days, skipping weekends and holidays.
Meeting times …
Working-hours overlap across two or more cities.
Fiscal year …
Tax / fiscal year boundaries and quarters by country.
Current fiscal year …
Which FY contains today, plus its quarters.
Countdowns
Time until …
Days until a future date, live-ticking.
Time since …
Days elapsed since a past date.
Holidays
When is …
Date of a named holiday in any supported country.
Is today a holiday?
Quick check against your country's public-holiday calendar.
Almanac
Moon phase
Phase name and illumination for any date.
Sunrise in …
Today's sunrise plus civil dawn and day length.
Sunset in …
Today's sunset plus civil dusk and day length.
Golden hour …
Morning and evening golden-hour windows.
Date in calendars
Project a Gregorian date through 14 calendar systems.
Next Friday the 13th
Next date matching weekday + day-of-month combo.
Next leap year
Next year with a February 29th.
Next palindromic date
Next date whose YYYYMMDD reads the same backward.
Next blue moon
Next second-full-moon in a calendar month.