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Time
This category is for questions about the methods humans go about measuring the passage of time. You can also find questions about converting one unit of time to another.
9,511 Questions
What is 177 minutes in hour and minutes?
3 minutes short of 3 hours
180 - 3 = 177
2 hours 57 minutes
60 + 60 + 57 = 177
Was measuring time easier in the past or now?
Depends on how you mean. Accurate timing wasn't as important earlier, which meant that getting it a little wrong didn't matter much. And if being a bit wrong doesn't matter, then measuring becomes easier. OTOH, clocks and watches were cruder too. If you really wanted to time an event accurately, it would have been more difficult. Today OTOH, even a basic wristwatch can measure down to the 1/100 of a second. We have both better tools to measure time, but also much greater need to measure time accurately.
How many minutes equal one hour?
There are 1 60th of an hour in 1 minute, as there are 60 minutes in 1 hour.
How many seconds in a decasecond?
A decasecond is equal to 10 seconds. Therefore, there are 10 seconds in a decasecond.
What is every 30 minutes on the hour and half-hour?
It refers to an even which occurs at the frequency of once every 30 minutes and that the times of occurrence are on the whole hour and at 30 minutes (half an hour) past the hour.
The first part of the sentence gives the frequency (every 30 minutes) and the second gives the phase shift. The latter is to distinguish its timing from an event which takes place every 30 minutes but at 10 minutes and 40 minutes past each hour
Why are there a 10 to the power 9 nanoseconds in an hour?
There are not.
1 nano second = 10^-9 second → 1 s = 10^9 ns.
There are 3600 seconds in 1 hour → 1 hour = 3600 s = 3600 × 10^9 ns = 3.6 × 10^12 ns.
