The length of time a star burns depends on its temperature and mass. It's certainly not possible to calculate this to the level of precision of seconds, and it's difficult to do so to the level of precision of millennia.
All stars 'burn' hydrogen
The duration of Burn It is 1740.0 seconds.
The duration of My Stars is 720.0 seconds.
The duration of C.U. Burn is 1800.0 seconds.
The duration of WWE After Burn is 2700.0 seconds.
Five seconds.
If you hold them for three seconds each, you burn approximately 5 calories burn lunge depending on your weight.
The duration of Win With the Stars is 1440.0 seconds.
The duration of Circus of the Stars is 2880.0 seconds.
The duration of Banner of the Stars is 3300.0 seconds.
The duration of Pawn Stars is 1380.0 seconds.
The duration of Making Stars is 420.0 seconds.