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**5 May 2019**** plus 1 day** will be

6th May 2019

For example

- What is 2 years before Today? (Today minus 2 years)
- What is 400 years from 21 July 2025? (21 July 2025 plus 400 years)
- What is 4 years from Yesterday? (Yesterday plus 4 years)
- What is 730 days before 18 December 2022? (18 December 2022 minus 730 days)
- What is 500 weeks before Tomorrow? (Tomorrow minus 500 weeks)
- What is 730 years before 27 May 2021? (27 May 2021 minus 730 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.