Indian Time Cycles

The Time cycles in India are:

• 60-year cycle
• Year
• 6 seasons of a year
• about 60 days (2 months) in a season
• Month (lunar)
• 2 pakshas in a month, shukla (waxing) and krishna (waning)
• 15 tithis in a paksha (1-14, 15th is purnima or amavasya)
• 60 ghatikas (or 30 muhurtas or 8 praharas) in a 24-hour period (ahoratra).
• 30 Kala (approx) in 1 muhurta
• 30 Kastha in 1 kala
• 15 Nimisha in 1 kastha

Years are synchronized with the solar sidereal year by adding a month every three years. The extra month is termed as "Adhik Mass" (extra month). This extra month is called Mala Masa (impure month) in Eastern India.