Solution: Because 1 hour =60 minutes, 1 day =24 hours. ?
Then according to the 24-hour clock, 10 pm is 22 o'clock.
6 am =6 am。
So working hours =24 hours -22 hours +6 hours.
=8 hours =8 hours.
That is, a * * * worked for 8 hours.
Extended data:
1 and the characteristics of the 24-hour system
(1) will not confuse the time in the morning with the time in the afternoon. In a calendar or similar document, you can tell at a glance whether it is morning or afternoon.
(2) can accurately describe the time of a day.
2, the characteristics of the twelve-hour system
(1) The twelve-hour clock divides the day into morning and afternoon.
(2) The morning session is from midnight to noon, and the afternoon session is from noon to midnight.
Baidu encyclopedia -24-hour system