The second is the SI unit for time, representing one-sixtieth of a minute or 1/86,400th part of a mean solar day.
Time Interval: The duration between two specific moments or events.
Minute (min): A larger unit for measuring time where 1 minute equals 60 seconds.
Hour (hr): An even larger unit for measuring time where 1 hour equals 60 minutes or 3600 seconds.