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**15 October 2018**** plus 60 days** will be

14th December 2018

For example

- What is 5 years from Today? (Today plus 5 years)
- What is 800 days from 12 January 2020? (12 January 2020 plus 800 days)
- What is 30 weeks from Yesterday? (Yesterday plus 30 weeks)
- What is 14 years from 23 July 2021? (23 July 2021 plus 14 years)
- What is 13 weeks from Tomorrow? (Tomorrow plus 13 weeks)
- What is 4 days before 13 January 2021? (13 January 2021 minus 4 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.