Time can be characterized as the aspect in light of which the advancement of any framework happens. It very well may be estimated with regards to seconds, minutes, hours, days, weeks, months, and years.
The SI unit for time is seconds.
Now let’s calculate the above.
We know that 1minute = 60 seconds and 1 hour = 60 minutes
For 1 hour, 60 * 60 = 3600 seconds
Hence, in 1 day or 24 hours the number of seconds is
24 * 3600 = 86,400 seconds
Therefore, we can say that there are 86400 seconds in a day.