WhatWeek

Date to Week Number Converter

Convert a date to its week number, week-based year, weekday, week start and end dates, and planning metadata.

Type any IANA time zone, such as Europe/Paris or America/Los_Angeles.
Week system
Date
2032-01-12
Week system
ISO
ISO week date
2032-W03-1
Week-based year
2032
Week number
3
Week starts
2032-01-12
Week ends
2032-01-18
Day of year
12
Quarter
Q1
Weeks remaining
50
Excel formula
=ISOWEEKNUM(DATE(2032,01,12))

Public holidays this week

Country: Holiday country unavailable

Data unavailable

Holiday country could not be inferred from this time zone yet.

Copy this result

Copy the calculated week result or a shareable URL with this date, time zone, and week system.