How many minutes are left today?

Answer 1

When asked at 7:10pm on 23 Feb 2010 there were 290 minutes left.

To calculate the number of minutes left, subtract the number of minutes so far from the number of minutes in a day.

The number of minutes in a day is 24 hours × 60 minutes/hour = 1440 minutes.

To calculate the number of minutes so far in a day multiply the hour (on the 24 hour clock) by 60 and add the minutes.

To convert am/pm to 24 hour format:

If the time is 12:something am subtract 12 hours to make the time 0:something; otherwise

If the time is 12:something pm leave it along; otherwise

if the time is something pm add 12 hours to the time.

For 7:10 pm, convert to 24 hour: add 12 hours to get 19:10

Now convert to minutes so far: 19 × 60 + 12 = 1150

→ minutes left = 1440 - 1150 = 290 minutes.