your email, aswini, thank you for your query and feedback. if you wish, i can help you with further details on tamil vakya panchangams. our tamil vakya panchangams are mainly meant for day to day use. as such they are usually referred as ganitha panchangams. ganitha actually means sunrise and panchagam means time. as such, they are calulated from sunrise to sunrise. an example of a simple vakya panchangam is the one displayed on your screen. on such panchangam, you can find the time when the rising sun triggers the start of a specific day. it can be noon or midnight. as such it gives you the day and time. it is also best to calculate ganitha panchagam for your area as the times may be different for other locations with different sunrise. this is the calculation for the panchangam that you are using: the panchagam is 12.25 am tamil time that is 12:25 am. the vinadi of the panchagam is 16.04:30. that is 16.04:30 am and 16.04:30 pm tamil time. from that we get 16:04 time on tamil calendar. there are many other vakya panchangams that you can use that are for all the day and time. here are some links that you can use to find more:
once, the secretary of the sri bhagyaraja temple, thanjavur, came to me complaining that all the vaakya panchangams he had received from various namboothars were showing the nakshatra as thulam. at that time i was not familiar with the use of chartha panchangam. i checked the dates of the most recent ones and found that it was indeed the case.
i then went to the temple and asked about the dates of the pambu panchangams. in the record i found that the last one was dated on jyotish samagri 13th of chaitra. it came from the sathwik sangeetha sampradaya. as per the chart, the starting date of the nakshatra was going to be in ninaaga thiruvizha (26th of chaitra). but it should have been in puthunna vazha (22nd of april). 3d9ccd7d82