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dateTime

Constructs a dateTime value from a date value and a time value.

fn:dateTime(arg1, arg2)

The

fn:dateTimeAdd (arg1 as xs:date?, arg2 as xs:time?)

is different from the

xs:dateTime

constructor, which accepts a single argument that includes the date and time. Time zone is taken into account when constructing the date/time.

If only one of the arguments has a time zone, or if both arguments have the same time zone, the result has this time zone.

If neither the date nor the date argument has a time zone, the result has no time zone.

If the two arguments have different time zones, an error is returned.

If the combination does not result in a valid time, for example, the day is 32 or the minute is 61, an error is returned.

The following expression returns

2023-06-12T11:35:29

as the result:

fn:dateTime((xs:date("2023-06-12")), (xs:time("11:35:29")))

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