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How Many Days Until January?

Count the days from today, or any date you choose, to the next January 1.

What this tool does

Count the days from today, or any date you choose, to the next January 1. You fill in these fields: Count from. It shows days until January 1, next January 1, and weeks and days.

Inputs

  • Count from: A date. Starts as today's date. Defaults to today. Change it to count from another day.

How to use

  1. Pick a date for "Count from".
  2. Read the result: days until January 1, next January 1, and weeks and days. It appears once every required field has a valid value.

Worked examples

Example 1. Inputs:

  • Count from: December 25, 2026

Results:

  • Days until January 1: 7 days
  • Next January 1: Friday, January 1, 2027
  • Weeks and days: 1 week, 0 days

How this is worked out: December 25 to December 31 is 6 days, and one more day reaches January 1: 6 + 1 = 7.

Example 2. Inputs:

  • Count from: January 1, 2026

Results:

  • Days until January 1: 0 days
  • Next January 1: Thursday, January 1, 2026
  • Weeks and days: 0 weeks, 0 days
  • Note: January 1 is the day you picked, so there are 0 days to go.

How this is worked out: The picked day is itself January 1, so the count is 0 and the date is that same day.

Example 3. Inputs:

  • Count from: January 2, 2026

Results:

  • Days until January 1: 364 days
  • Next January 1: Friday, January 1, 2027
  • Weeks and days: 52 weeks, 0 days

How this is worked out: January 1 has passed, so the target is 2027-01-01. 2026-01-02 to 2027-01-02 is 365 days (2026 is not a leap year), and January 1 is one day earlier: 365 - 1 = 364.

Example 4. Inputs:

  • Count from: January 2, 2023

Results:

  • Days until January 1: 364 days
  • Next January 1: Monday, January 1, 2024
  • Weeks and days: 52 weeks, 0 days

How this is worked out: 2023-01-02 to 2024-01-02 is 365 days (the leap day of 2024 is after January 2), so January 1, 2024 is 365 - 1 = 364 days away.

Where this comes from

The next time a month and day comes round. Finds the next time a month and day comes round, on or after the start date. If the start date is that day, there are 0 days to go. A February 29 date is observed on February 28 in a year that is not a leap year. Source: The Gregorian calendar: month lengths and the leap year rule (every fourth year, except century years not divisible by 400).

Limitations

  • Counts to January 1 only, each year. An event held on a nearby weekday or weekend instead is not accounted for.
  • Counts whole calendar days and ignores time zones and the time of day.
  • Uses the Gregorian calendar for every date, for years 1 to 9999.

FAQs

Q: What does it count down to?
A: January 1, the next time it comes round on or after the date you count from.
Q: What if the date I count from is January 1?
A: The tool shows 0 days and says so. It does not skip ahead to next year.
Q: What if January 1 has already passed this year?
A: It counts to January 1 of the following year.
Q: Can I count from a date other than today?
A: Yes. Change the Count from date. It starts as today's date.
Q: Does the count include the day I start from?
A: No. It counts the days between the two dates, so the day before January 1 shows 1 day.
Q: How are the days counted?
A: As whole calendar days from the start date to the target date, with leap years included. Time of day and time zones are ignored.

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