# ››Date difference from Oct 1, 1988 to May 21, 2012

The total number of days between Saturday, October 1st, 1988 and Monday, May 21st, 2012 is 8,633 days.

This is equal to exactly 23 years, 7 months, and 20 days.

This does not include the end date, so it's accurate if you're measuring your age in days, or the total days between the start and end date. But if you want the duration of an event that includes both the starting date and the ending date, then it would actually be 8,634 days.

8,633 days is equal to 1233 weeks and 2 days.

The total time span from 1988-10-01 to 2012-05-21 is 207,192 hours.

This is equivalent to 12,431,520 minutes.

You can also convert 8,633 days to 745,891,200 seconds.

# ››October, 1988 calendar

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October 1st, 1988 is a Saturday. It is the 275th day of the year, and in the 40th week of the year (assuming each week starts on a Sunday), or the 4th quarter of the year. There are 31 days in this month. 1988 is a leap year, so there are 366 days in this year. The short form for this date used in the United States is 10/1/1988.

# ››May, 2012 calendar

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May 21st, 2012 is a Monday. It is the 142nd day of the year, and in the 21st week of the year (assuming each week starts on a Sunday), or the 2nd quarter of the year. There are 31 days in this month. 2012 is a leap year, so there are 366 days in this year. The short form for this date used in the United States is 5/21/2012.

# ››Enter dates

Enter two dates below to find the number of days between them. For best results, avoid entering years before 1753. Examples include 1906-03-23 or Apr 8, 1952. You can also type words like today or yesterday, or use the American format, 12/11/2013.

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# ››Date calculator

This site provides an online date calculator to help you find the difference in the number of days between any two calendar dates. Simply enter the start and end date to calculate the duration of any event. You can also use this tool to determine how many days have passed since your birthday, or measure the amount of time until your baby's due date. The calculations use the Gregorian calendar, which was created in 1582 and later adopted in 1752 by Britain and the eastern part of what is now the United States. For best results, use dates after 1752 or verify any data if you are doing genealogy research. Historical calendars have many variations, including the ancient Roman calendar and the Julian calendar. Leap years are used to match the calendar year with the astronomical year. If you're trying to figure out the date that occurs in X days from today, switch to the Days From Now calculator instead.