For the 72 hour visa free transit which is available only for certain nationalities, I found that the 72 hours starts from 00:00 the day following the entry date in almost all the airports, except Beijing Airport. For example, if an air passenger arrives in Guangzhou at 08:00 on June 2nd, then the latest time for him to leave is 23:59 on June 5. I found this information here-
https://www.travelchinaguide.com/embassy/visa/free-72hour/
Is the 24 hr period for the 24 hour visa free transit (which applies to almost all nationalities including Indian which is mine) also calculated in the same manner? The time difference between my arrival and departure at Shanghai is 24 hours 10 min. I am wondering if I need to apply for a visa to get out of the airport or whether I can get the visa free transit. Also, if I need to apply for the visa, can I get it on arrival?