Can you explain the specific date and timing of Sai Baba's Mahasamadhi as detailed in Chapter 42?

According to the account in Chapter 42 of the Shri Sai Satcharitra, Sai Baba's Mahasamadhi occurred in the Shaka year 1840, during the first month of the sun's southern transit (Dakshinayan). The day was Vijayadashami, which falls in the bright half of the month (Shukla Paksha). The text specifies that Sainath made his preparations for departure during the third watch of the day. It also provides a nuance regarding the lunar day, noting that while the Dashami tithi ended around 12:30, the actual time of his departure fell within the Ekadashi tithi. The people of Shirdi were blessed to have his company for over half a century before this event.