# ››Number of days in 2021

2021 is not a leap year, so there are 365 days in the year.

You can also choose any day of the week and count how many times it occurs in 2021. Here are some shortcut links if you'd like to explore:

# ››Date difference from Jan 1, 2021 to Jan 1, 2022

The total number of days between Friday, January 1st, 2021 and Saturday, January 1st, 2022 is 365 days.

This is equal to 1 year.

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 366 days.

If you're counting workdays or weekends, there are 261 weekdays and 104 weekend days.

If you include the end date of Jan 1, 2022 which is a Saturday, then there would be 261 weekdays and 105 weekend days including both the starting Friday and the ending Saturday.

365 days is equal to 52 weeks and 1 day.

The total time span from 2021-01-01 to 2022-01-01 is 8,760 hours.

This is equivalent to 525,600 minutes.

You can also convert 365 days to 31,536,000 seconds.

# ››January, 2021 calendar

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January 1st, 2021 is a Friday. It is the 1st day of the year, and in the 53rd week of the year (assuming each week starts on a Monday), or the 1st quarter of the year. There are 31 days in this month. 2021 is not a leap year, so there are 365 days in this year. The short form for this date is 1/1/2021.

# ››January, 2022 calendar

 Su M Tu W Th F Sa 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

January 1st, 2022 is a Saturday. It is the 1st day of the year, and in the 52nd week of the year (assuming each week starts on a Monday), or the 1st quarter of the year. There are 31 days in this month. 2022 is not a leap year, so there are 365 days in this year. The short form for this date is 1/1/2022.

# ››Enter dates

Enter two dates below to find the number of days between them. For best results, avoid entering years before 1753. Examples include 2003-06-27 or Oct 4, 1936. You can also type words like today or yesterday, or use the American format, 9/16/2021.

Number of days between:
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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.