how many seconds in 24 hours

There are 86,400 seconds in 24 hours. Here’s the breakdown:
24 hours×60 minutes/hour×60 seconds/minute=86,400 seconds24,\text{hours}\times 60,\text{minutes/hour}\times 60,\text{seconds/minute}=86,400,\text{seconds}24hours×60minutes/hour×60seconds/minute=86,400seconds.