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**5 May 2019**** minus 20 days** will be

15th April 2019

For example

- What is 40 years from Today? (Today plus 40 years)
- What is 28 months from 5 January 2020? (5 January 2020 plus 28 months)
- What is 500 days before Yesterday? (Yesterday minus 500 days)
- What is 12 years from 5 April 2024? (5 April 2024 plus 12 years)
- What is 8 months before Tomorrow? (Tomorrow minus 8 months)
- What is 200 years before 11 April 2021? (11 April 2021 minus 200 years)

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.