HATS OFF TO ASTRONOMERS
CIRCUMFERENCE = 29400 MILES
70 MILES (110 KM PER DEGREE)
ROTATION 4 DEGREES PER MINUTE IE 15 DEGREES IN ONE HOUR.
NOTHINGS AND EASTINGS - ONE DEGREE IS 75 MILES
DELHI - 77 DEG 31 MINUTES EAST, 28 DEG 38 MIN NORTH.
1906 - SOME TIME RAIL AND POST TIME - +5:30 MIN 82 DEG 30 MINS.
01 SEP 1917 - INDIAN STANDARD TIME IMPLEMENTED .
01 SEP 42 TO 15 OCT 45 THE TIME WAS INCREASED BY ONE HOUR +6:30 MIN GMT.
DELHI LOCAL TIME IS 21 MIN 8 SEC LESS THAN IST.
SIDEREAL DAY
IT IS 23 HRS 56 MIN 4.091 SEC
ONE FULL ROTATION OF THE EARTH - 23 HRS 56 MIN 15 SEC.
ONE ROUND OF THE SUN - 365 DAYS 6 HRS AND 9 SECONDS .
NIRYAT निरयत , SUN- 13 APR ARIES 0 DEGREE. BAISAKHI DAY.
ALL 12 RASHIS DO NOT PASS THROUGH IN EXACTLY 2 HRS DUE TO THEIR ELIPTICAL PASS .
ONE SOLAR SECOND = 1.00278 SIDERAL SECOND.
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