5. WHAT IS THE MEASURE OF TIME.
Some of the basic units of time
are second, minute, hour, day,
week, month, and year. We
estimate time using different units
depending on the span of time we
are trying to measure.
6. Units of Measurement
(Time)
Equivalent
1 Millennium
1 Century
1 Decade
1 Year
1 Month
1 Week
1 Day
1 Hour
1 Minute
10 centuries
10 decade
10 years
12 months
4 weeks
7 days
24 hours
60 minutes
60 seconds
7. The 12-hour clock runs
from 1am to 12 noon and
then from 1pm to 12
midnight. The 24-hour
clock uses the numbers
00:00 to 23:59 (midnight
is 00:00).
WHAT IS 12 HOURS AND
24 HOUR TIME?
8.
9.
10. For example if the
time in 12 hour clock
is 11:00 PM, then the
time in 24 hour clock
is 11:00 + 12:00 =
23:00 hours.
11. In 24-hour time, midnight
is signified as 00:00. So,
for midnight hour, add 12
and the signifier “AM” to
convert to 12-hour time.
This means that, for
example, 00:13 in 24-hour
time would be 12:13 AM
in 12-hour time.
12. What is the relationship between 12-
hour and 24-hour time?
The 12-hour clock runs from
1am to noon and then from 1pm
to midnight. The 24-hour clock
runs from 00:00 (midnight) to
23:59.
