Sunday

Julian Date for August 29, 2027

Sunday, August 29, 2027 is day 241 of 365 — the 241st day of 2027. Written as a Julian date it is 2027241.

Julian date (YYYYDDD)

2027241

5-digit (YYDDD)
27241
Day of year
241
Zero-padded (DDD)
241
Julian Day Number
2461647
Julian Date at 00:00 UTC
2461646.5
Modified Julian Date
61646.0

How 2027241 is built

A Julian date in the day-of-year sense is just the year followed by the day number, counted from 1 January. August 29, 2027 is the 241st day of 2027, so the code is 2027 + 241 = 2027241. Many systems drop the century and print 27241 instead.

2027 is a common year with 365 days, so day numbers run from 001 to 365. After August 29, 2027 there are 124 days left in the year.

Careful: 27241 does not name a century

The 5-digit form 27241 only carries two digits of year, so on its own it is ambiguous. Day 241 of a year ending in 27 could equally be:

  • August 29, 2027 — the usual reading for a recent product code
  • August 29, 1927
  • August 29, 2127

If you are reading a code off packaging, the surrounding context — a shelf life of months rather than decades — almost always settles it.

Day 241 in nearby years

The same day number lands on a different calendar date depending on whether the year is a leap year. This is the single most common mistake when decoding a code whose year you had to guess.

YearJulian dateCalendar date
2024 2024241 August 28, 2024
2025 2025241 August 29, 2025
2026 2026241 August 29, 2026
2027 2027241 August 29, 2027
2028 2028241 August 28, 2028
2029 2029241 August 29, 2029
2030 2030241 August 29, 2030

Astronomical Julian Date for August 29, 2027

In astronomy, "Julian Date" means something different: a continuous count of days since noon on 1 January 4713 BC. The Julian Day Number for August 29, 2027 is 2461647 — that number covers the 24 hours from noon UTC on August 29, 2027 to noon UTC the next day.

  • JD at 00:00 UTC — 2461646.5
  • JD at 12:00 UTC — 2461647.0
  • Modified Julian Date (MJD) at 00:00 UTC — 61646.0

See Julian Day for where the count comes from, or the astronomical converter to include a time of day.

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