Local time in VATICAN CITY - VATICAN CITY STATE
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Knowledge about Local time Vatican City State - Vatican City
It is usually preferable to indicate a time zone (zone designator) using the standard’s notation.
If the time is in UTC, add a 'Z' directly after the time without a space
'Z' is the zone designator for the zero UTC offset
"09:30 UTC" is therefore represented as "09:30Z" or "0930Z"
"14:45:15 UTC" would be "14:45:15Z" or "144515Z".
UTC time is also known as 'Zulu' time, since 'Zulu' is the NATO phonetic alphabet word for 'Z'.
The offset from UTC is given in the format ±
So if the time being described is one hour ahead of UTC (such as the time in Berlin during the winter), the zone designator would be "+01:00", "+0100", or simply "+01"
This is appended to the time in the same way that 'Z' was above
The offset from UTC changes with daylight saving time, e.g
a time offset in Chicago, would be "-06:00" for the winter (Central Standard Time) and "-05:00" for the summer (Central Daylight Time).
The following times all refer to the same moment: "18:30Z", "22:30+04", "1130-0700", and "15:00-03:30"
Nautical time zone letters are not used with the exception of Z
To calculate UTC time one has to subtract the offset from the local time, e.g
for "15:00-03:30" do 15:00 − (−03:30) to get 18:30 UTC.
The offset can also be used in the case where the UTC time is known, but the local offset is not
In this case the offset is "-00:00", which is semantically different from "Z" or "+00:00", as these imply that UTC is the preferred reference point for those times.
Combining date and time representations to represent a single point in time (time point) is quite simple
It is in the format of