What various calendar and religious references are used in Chapter 42 to pinpoint the date of Sai Baba's departure?

Chapter 42 uses multiple calendar systems and religious observances to mark the date of Sai Baba's departure, highlighting the confluence of cultures. It specifies the Hindu calendar details: Shaka year 1840, the sun's southern transit (Dakshinayan), and Vijayadashami in the bright half of the month (Shukla Paksha). Simultaneously, as described in Chapter 42, it aligns with the Islamic calendar, noting it was the 9th date of the Muslim month and the night of 'Kattal,' the eve of Moharram. The chapter also adds that for some, this particular day was observed as Buddha Jayanti.