The total number of days between Sunday, May 12th, 1957 and Sunday, July 16th, 1978 is 7,735 days.
This is equal to 21 years, 2 months, and 4 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 7,736 days.
If you're counting workdays or weekends, there are 5,525 weekdays and 2,210 weekend days.
If you include the end date of Jul 16, 1978 which is a Sunday, then there would be 5,525 weekdays and 2,211 weekend days including both the starting Sunday and the ending Sunday.
7,735 days is equal to 1,105 weeks.
The total time span from 1957-05-12 to 1978-07-16 is 185,640 hours.
This is equivalent to 11,138,400 minutes.
You can also convert 7,735 days to 668,304,000 seconds.
May 12th, 1957 is a Sunday. It is the 132nd day of the year, and in the 19th week of the year (assuming each week starts on a Monday), or the 2nd quarter of the year. There are 31 days in this month. 1957 is not a leap year, so there are 365 days in this year. The short form for this date used in the United States is 5/12/1957, and almost everywhere else in the world it's 12/5/1957.
July 16th, 1978 is a Sunday. It is the 197th day of the year, and in the 28th week of the year (assuming each week starts on a Monday), or the 3rd quarter of the year. There are 31 days in this month. 1978 is not a leap year, so there are 365 days in this year. The short form for this date used in the United States is 7/16/1978, and almost everywhere else in the world it's 16/7/1978.
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.