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**7 July 2019**** plus 11 days** will be

18th July 2019

For example

- What is 28 days before Today? (Today minus 28 days)
- What is 730 months before 8 October 2020? (8 October 2020 minus 730 months)
- What is 500 years from Yesterday? (Yesterday plus 500 years)
- What is 365 days from 6 December 2021? (6 December 2021 plus 365 days)
- What is 14 years before Tomorrow? (Tomorrow minus 14 years)
- What is 13 days from 15 February 2020? (15 February 2020 plus 13 days)

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.