How many days are there in a calendar?
Well, different calendars have different prefaces / setups.
but their are 365 days or sometimes 366. (only on leap years) in a year.
Well every 4 years there's a leap year, so you could account for 1 less day than is needed.
How many seconds in 4.5 years?
142009200 seconds approx. The exact number depends on how many leap years there were in the interval and on whether or not there were any leap seconds.
This is completely dependent on how fast you travel. Speed is distance/time.
While using am and pm in time representation, it denotes..
am ==> Anti Meridian
pm ==> Post Meridian
No daytime does not start at 1200. Daytime is often considered to start at dawn when a time is used it is often 6 AM. When the sun rises is also considered the start of a new day for many rather than the official one minute after midnight.
There are 365.25 days in 12 months. So there are 365.25/12,*3 or 91.3125 days in 3 months