Hours to Ghati (h to ghati)
1 hour equals 2.5 ghati exactly.
How to convert hours to ghati
To convert hours to ghati, multiply the number of hours by 2.5. This factor is exact. To go the other way, multiply ghati by 0.4.
ghati = hours × 2.5
Example: 10 hours = 25 ghati.
Months and years are not constant. This site uses the average Gregorian year of 365.2425 days, so one 'year' converts to 365.2425 days, not 365; use 'common year' for exactly 365 days.
About these units
Hour (h)
60 minutes or 3,600 seconds, one twenty-fourth of a mean solar day.
Egyptian astronomers gave us the twelve. Coffin lids from about 2150 BC show the night divided into exactly 12 intervals, tied to the rising of star groups called decans, and the day was later split into 12 hours with sundials. These were seasonal hours, a twelfth of the daylight, so a summer hour was longer than a winter one. The word itself comes from Greek hora, originally any span of time, through Latin and Old French into English in the 13th century.
Equal hours of 1/24 of a day were probably first proposed by Hipparchus, and mechanical clocks made them the practical choice, since a clock showing seasonal hours had to be readjusted every morning and evening. Today the hour is exactly 3,600 seconds and is a non-SI unit accepted for use with the SI. Civil time still bends it a little: UTC hours have lasted 3,601 seconds 27 times since 1972 to keep clocks within 0.9 seconds of the Earth's rotation. In practice we use it for working shifts, travel times and electricity bills measured in kilowatt-hours.
1 hour = 3,600 seconds (exactly).
Sources: Wikipedia: Hour; BIPM: SI Brochure, 9th edition
Ghati (ghati)
24 minutes, one sixtieth of a day. A traditional Indian unit of time, kept alive mainly in astrology and traditional timekeeping.
Sixty ghatis, also written ghati or ghatika, fill one day and night in traditional Indian reckoning, so each lasts 24 minutes. Astronomical texts such as the Surya Siddhanta divide it further, with 60 vighati in a ghati. Wikipedia's table lists the pala at about 24 seconds, though it marks the sidereal table as failing verification, so the finer subdivisions should be treated with care.
The ghati fits into larger units in a simple way. Two ghatis make a muhurta, and 7.5 ghatis make the three-hour yama that appears in the tropical table.
The unit survives mainly in astrology and in writing about traditional timekeeping. The figure used here is the plain 24-minute ghati, one sixtieth of a 24-hour day.
1 ghati = 1,440 seconds (exactly).
Sources: Wikipedia: Hindu units of time; Wikipedia: Muhurta
Related conversions
- Ghati to hours (reverse)
- Hours to seconds
- Hours to minutes
- Hours to days
- Hours to weeks
- Hours to months
- Hours to years
- Hours to milliseconds
- Hours to microseconds
- Hours to nanoseconds
- Hours to decades
- Hours to centuries
- Hours to millennia
- Seconds to ghati
- Minutes to ghati
- Days to ghati
- Weeks to ghati
- Months to ghati
- Years to ghati
See all time units.