Nazhika to Hour Convertor
Traditional astrologers measure time in terms of Nazhika and Vinazhika with reference to sunrise or sunset. In North India Nazhika is called Ghati and Vinazhika is Vighati.
N2H Convertor
For example an astrologer may write in the horoscope that "X was born 15 nazhika and 25 vinazhika after sunrise". A day is divided into 60 nazhika during which time the earth rotates by 360 degrees. This means that a nazhika is the time taken by earth to rotate by 6 degrees. As one nazhika is divided into 60 vinazhika, a day has 3600 vinazhikas.

Conversion of time from nazhika system to standard time is straight forward since one nazhika equal 24 minutes and one vinazhika 24 seconds. However, certain complications arise since the reference may be made to before or after Sunrise and since the time may move over to the next day or go back to the previous day as per standard time conventions.