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**20 October 2018**** minus 120 days** will be

22nd June 2018

For example

- What is 2 years before Today? (Today minus 2 years)
- What is 900 days before 20 September 2023? (20 September 2023 minus 900 days)
- What is 25 years from Yesterday? (Yesterday plus 25 years)
- What is 14 years from 4 May 2024? (4 May 2024 plus 14 years)
- What is 7 weeks before Tomorrow? (Tomorrow minus 7 weeks)
- What is 12 weeks from 4 March 2025? (4 March 2025 plus 12 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.