Get the weekday (Vara) for a given Gregorian date.
[Ch. I, v.52] The regents of the days (weekdays) follow the specific
order of the planets (Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn).
The vāra is authoritatively determined by the remainder of the
Ahargana (Sum of Days) when divided by seven.
Parameters
date: string|Date
Modern Date or ISO string
Returns number
Weekday index (0=Ravivara/Sun, 1=Somavara/Moon, etc.)
Get the weekday (Vara) for a given Gregorian date.
[Ch. I, v.52] The regents of the days (weekdays) follow the specific order of the planets (Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn). The vāra is authoritatively determined by the remainder of the Ahargana (Sum of Days) when divided by seven.