Chaturdashi timing is rooted in the Hindu lunar calendar. A tithi tracks a twelve-degree interval in the Moon's angular separation from the Sun. Its length and its placement within a civil date vary, which explains why a single fixed clock time cannot serve every Choti Diwali observance.
Astronomy and interpretation
The tithi is determined by the Sun-Moon relationship. Religious calendars subsequently use observance rules tied to dawn, sunset, or other times of the day. Wider astrological interpretations are part of belief systems and should be separated from the astronomical calculation itself.
Ask which ritual you are timing
Abhyanga Snan is linked to the time before sunrise. Kali Chaudas follows a distinct nighttime timing according to certain calendars that set it apart. Lakshmi Puja involves specific evening timings. The time designated for one ritual should not be applied to another.
Read a local panchang carefully
Choose the city, year, and time zone, then note both the tithi interval and the specified ritual window. Verify if the shown times go past midnight. Families living overseas should refer to their local time instead of directly converting an Indian clock time.
Keep a useful planning note
Include the activity, local date, start and end times, city, and source together. This brief note helps avoid confusion when family members share screenshots without location settings enabled.
References & further reading
References to calendars and rituals indicate specific traditions; actual household practices may vary. Practical planning tips serve as editorial advice. Choose your own city and year prior to using the times shown on a calendar.