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**7 February 2023**** minus 12 days** will be

26th January 2023

For example

- What is 12 years before Today? (Today minus 12 years)
- What is 60 months from 5 October 2019? (5 October 2019 plus 60 months)
- What is 900 years from Yesterday? (Yesterday plus 900 years)
- What is 10 years from 11 April 2019? (11 April 2019 plus 10 years)
- What is 8 weeks before Tomorrow? (Tomorrow minus 8 weeks)
- What is 15 weeks before 17 November 2023? (17 November 2023 minus 15 weeks)

The **Gregorian calendar** is the most widely used internationally civil calendar. It is named after Pope Gregory 13th, who introduced it in **October 1582**.

The Gregorian calendar is a **solar calendar**. A regular Gregorian year consists of 365 days, but as in the Julian calendar, in certain years, a leap year, a **leap day is added to February**

The months of **April, June, September, and November** have **30 days**, while the **rest have 31 days** except for **February**, which has **28 days** in a standard year, and **29 in a leap year**.

For best results, please use dates after 1752 and **verify any data** if you are doing genealogy research.