Vṛścik‌‌‌a preceded by the solar month of Tulā, and followed by the solar month of Dhanu. The Vrschika month is called "Kartigai" in the Tamil Hindu calendar. The ancient and medieval era Sanskrit texts of India vary in their calculations about the duration of Vrschika, just like they do with other months. For example, the "Surya Siddhanta" calculates the duration of Vrschika to be 29 days, 11 hours, 46 minutes and 0 seconds. In contrast, the "Arya Siddhanta" calculates the duration of the Vrschika month to be 29 days, 12 hours, 12 minutes and 24 seconds. The Indian solar month names
Lunar month date is named after the "tithi" ruling at sunrise. As the "tithi" is shorter than the day the date sometimes jumps. In common law, a "lunar month" traditionally meant exactly 28 days or four weeks, thus a contract for 12 months ran for exactly 48 weeks. In the United Kingdom, the lunar month was formally replaced by the calendar month for deeds and other written contracts by the Law of Property Act 1925 and for all other legal purposes by the Interpretation Act 1978. There are several types of lunar month. The term "lunar month" usually refers to the synodic