Owing to the thousands of years that have passed by since his birth, there are different times of the year that different devotees are believed he was born at. The most popular belief is that he was born on the full moon day of the Chaitra month of the Hindu calendar, and this is widely celebrated across India. It falls somewhere in April every year. This year, the date falls on 27th April, 2021 according to this belief.
So the tithi for hanuman jayanti begins at 12.44 pm on 26th April, 2021 and ends on 9.01 am on April 27, 2021.
However, as mentioned before, there are regional differences in celebration of Hanuman Jayanti.
The Indian state of Karnatake, celebrates it on Shukla Paksha Trayodashi during Margashirsha month, and calls it Hanuman Vratam. This year, it falls on December 16, 2021.
It Begins at - 02:01 AM, Dec 16, and Ends at - 04:40 AM, Dec 17.
It is believed by the Tamils that Lord Hanumath was born during Margashirsha Amavasya (new moon) when Moolam Nakshatram was prevailing. In most years, the moolam nakshatram prevails when the new moon occurs. In rare years when Moolam Nakshatra does not prevail or coincide with new moon, the new moon day is selected to be celebrated as the birthday of Vajrangvali.
The states of Telengana and Andhra Pradesh have a unique way of celebrating the birth of Lord Hanuman. There, it is celebrated for a period of 41 days which starts on Chitra purnima or full moon, and ends on the Baisakhi month’s 10th day, on Krishna paksha. The concluding day is Hanuman Jayanti Day.
Telugu Hanuman Jayanthi on Friday, June 4, 2021.
North Hanuman Jayanti on Tuesday, April 27, 2021.
Tamil Hanumath Jayanthi on Sunday, January 2, 2022.
Kannada Hanuman Jayanthi on Thursday, December 16, 2021.