Date-time Conversion Functions from Numeric Representations
Convenience wrappers to create date-times from numeric representations.
ISOdatetime(year, month, day, hour, min, sec, tz = "") ISOdate(year, month, day, hour = 12, min = 0, sec = 0, tz = "GMT")
- year, month, day
- numerical values to specify a day.
- hour, min, sec
- numerical values for a time within a day. Fractional seconds are allowed.
- A time zone specification to be used for the conversion.
""is the current time zone and
"GMT"is UTC. Invalid values are most commonly treated as UTC, on some platforms with a warning.
ISOdate are convenience wrappers for
strptime that differ only in their defaults and that
ISOdate sets UTC as the time zone. For dates without times it
would normally be better to use the
The main arguments will be recycled using the usual recycling rules.
Because these make use of
strptime, only years in the
0:9999 are accepted.
An object of class "POSIXct".