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**31 August 2023**** minus 1 year** will be

31st August 2022

For example

- What is 14 years before Today? (Today minus 14 years)
- What is 28 days from 13 August 2024? (13 August 2024 plus 28 days)
- What is 730 days before Yesterday? (Yesterday minus 730 days)
- What is 600 weeks from 3 October 2021? (3 October 2021 plus 600 weeks)
- What is 14 months before Tomorrow? (Tomorrow minus 14 months)
- What is 2 years before 19 August 2023? (19 August 2023 minus 2 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.