Subtract Time Calculator

Accepts 09:00, 9:00 am or 09:00:30.
Give both dates for spans longer than a day.
Resulting time (24 h)
09:00:00
Time Duration Calculator
Duration in hours
0.0000 h
Duration in minutes
0.00 min
Duration in seconds
0 s
Whole days
0 d
Hours part
0 h
Minutes part
0 min
Seconds part
0 s
Duration as h:mm
0:00
Duration as h:mm:ss
0:00:00
Duration in words
0 seconds
Hours after the break
0.0000 h
Break deducted
0 min
Resulting time (12 h)
9:00 AM
Days rolled over
0 d
Crosses midnight
no
Worked out from ISO 8601-1:2019, Date and time - Representations for information interchange, clauses 5.3 and 5.5 and 2 other sources.

How this is worked out

2 steps
  1. Subtracting 0 seconds from 09:00:00.
  2. 0 minutes total = 0 hours (60 s = 1 min, 60 min = 1 h).

Results are general information, not financial, tax, legal, medical or engineering advice.