The keyword term "11 september 2025 tithi" functions as a noun phrase. The core component is the noun "tithi," which is specified or modified by the date "11 september 2025." In the context of the Hindu lunisolar calendar, the tithi for September 11, 2025, is Chaturthi, the fourth lunar day, occurring during the Shukla Paksha (waxing phase of the Moon) in the month of Bhadrapada.
A tithi is a fundamental unit of time in the Vedic calendar, defined as the duration it takes for the longitudinal angle between the Moon and the Sun to increase by 12 degrees. A lunar month consists of 30 tithis, divided into two fortnights (Paksha): the Shukla Paksha (waxing moon) and the Krishna Paksha (waning moon). The duration of a tithi is variable, lasting between approximately 19 to 26 hours, and therefore does not align perfectly with the 24-hour solar day. For September 11, 2025, the Chaturthi tithi begins at approximately 20:34 (8:34 PM) on September 10 and ends at 17:46 (5:46 PM) on September 11 (timings are approximate and dependent on the geographical location, such as New Delhi, India).
The primary significance of this specific tithiBhadrapada Shukla Chaturthiis its observance as Ganesh Chaturthi. This is a major Hindu festival celebrating the birth of Lord Ganesha, the god of new beginnings, wisdom, and the remover of obstacles. Therefore, determining the tithi for this date is crucial for identifying one of the most important festival days of the year 2025.
