100 weeks before Today

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Do you want to know the date which is absolutely One Hundred weeks before Today, without counting manually day over day?

The date exactly 100 weeks before Today (28 November 2025) was 29 December 2023

To cross-check whether the date 29 December 2023 is correct, you can find out the dates difference between Today and 29 December 2023. Additionally, you may also check 100 weeks after Today, and the date range period for 100 weeks prior last period Today

This day calculation is based on all days, which is Monday through Sunday (including weekends). So if you calculate everyweek one-by-one One Hundred weeks ago, you will find that it was December 29, 2023 before 100 weeks since the date November 28, 2025.

December 2023 in the Calendar:
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Facts about 29 December 2023:

29th December, 2023 falls on Friday which is a Weekday. See the alternate names of Friday
That was 52nd (Fifty-second) week of year 2023.
It's 362nd (Three Hundred Sixty-second) Day of the year.
There are 31 days in the month of December 2023. Checkout the days in other months of 2023 along with days in December 2023.
Year 2023 has 365 days in total.
The month December was 12th month of Year 2023.
The short date with year for 29 December 2023 is mostly written in the USA (United States of America), Indonesia and a few more countries as 12/29/2023, and in almost all other countries as 29/12/2023. Which means the shorthand for 29 December is written as 12/29 in the countries including USA, Indonesia and a few more, while everywhere else it is represented as 29/12.

Similarly, the short date with year for 28 November 2025 is written in the United States as 11/28/2025, and almost everywhere else as 28/11/2025. This means the shorthand for 28 November is written as 11/28 in the USA, and 28/11 in rest of the world.

See the detailed guide about Date representations across the countries for Today.
The month December is also known as Desember, Disambar, Dezamber, decembro, Dezember, Decembre, meno mo-bi, Dekembra, desembre, Zecemvar and dekul across the Globe.
The month November is also known as Novamber, Navambar, novembro, Novembre, meno mo-mo, Novembra, novembre, Noemvar and novul across the Globe.
Year 2023 was NOT a Leap Year.
Note: In a Leap Year there are 366 days (a year, occurring once every four years, which has 366 days including 29 February as an intercalary day.), rest years have 365 days.
Year 2028 will be the nearest future leap year.