Instant · Precise · Universal
28 units available
6 categories total
To convert years to days: multiply by 365 (or 365.25 for average including leap years). To seconds: multiply by 31,536,000.
1 yr = 365 d = 8,760 h = 525,600 min = 31,536,000 s. A leap year has 366 days (31,622,400 s).
For example, 1 Year (365 days) (yr) = 527039.0802 Minute (Sidereal) (min (Sid)).
| Year (365 days) (yr) | Minute (Sidereal) (min (Sid)) |
|---|---|
| 0.1 | 52703.90802 |
| 0.5 | 263519.5401 |
| 1 | 527039.0802 |
| 2 | 1054078.16 |
| 5 | 2635195.401 |
| 10 | 5270390.802 |
| 25 | 13175977.01 |
| 50 | 26351954.01 |
| 100 | 52703908.02 |
| 500 | 263519540.1 |
| 1000 | 527039080.2 |
The common year is a unit of time equal to 365 days, or 31,536,000 seconds.
1 yr = 365 d = 8,760 h = 525,600 min = 31,536,000 s. A leap year has 366 days (31,622,400 s).
To convert years to days: multiply by 365 (or 365.25 for average including leap years). To seconds: multiply by 31,536,000.
Age calculation, financial year reporting, contract durations, academic years, and historical timeline reference.
The year 2000 was a leap year (divisible by 400), but 1900 was not (divisible by 100 but not 400). The Gregorian rule fixes the calendar's drift to 1 day per 3,236 years.
Assuming every 4th year is a leap year — century years must be divisible by 400 (so 1900 wasn't a leap year).
Leap year rule: divisible by 4 = leap, UNLESS divisible by 100, UNLESS also divisible by 400. So 2000 was, 1900 wasn't.
The sidereal minute is 1/60 of a sidereal hour — approximately 59.836 seconds in solar time.
1 sidereal minute = 59.836 solar seconds. 60 sidereal minutes = 1 sidereal hour.
To convert sidereal minutes to solar seconds: multiply by 59.836. To solar minutes: multiply by 0.99727.
Precise observation timing, transit event recording, and telescope tracking rate calibration.
A sidereal minute is about 0.164 seconds shorter than a solar minute — small but significant over an observing session.
Using solar minutes when sidereal minutes are required in astronomical calculations — the error accumulates over time.
Sidereal minutes/seconds are just slightly shorter than their solar counterparts. The ratio is always ~0.99727.



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