CFTime instanceThe formatting is largely oblivious to locale. The reason for this is
that certain dates in certain calendars are not POSIX-compliant and the
system functions necessary for locale information thus do not work
consistently. The main exception to this is the (abbreviated) names of
months (bB), which could be useful for pretty printing in the local
language. For separators and other locale-specific adornments, use
local knowledge instead of depending on system locale settings; e.g.
specify %m/%d/%Y instead of %D.
# S3 method for CFTime
format(x, format = "", tz = "", usetz = FALSE, ...)The CFTime instance whose timestamps will be formatted.
A character string. The default for the format methods is
"%Y-%m-%dT%H:%M:%S" if any timestamp has a time component which is not
midnight, and "%Y-%m-%d" otherwise. The only supported specifiers are
bBdeFhHImMpRSTYz%. Modifiers E and O are silently ignored. Other
specifiers, including their percent sign, are copied to the output as if
they were adorning text.
Ignored.
Logical. Should the time zone offset be appended to the output? This is always in numerical form, i.e. "-0800", from UTC.
Ignored.
Week information, including weekday names, is not supported at all as a
"week" is not defined for non-standard CF calendars and not generally
useful for climate projection data. If you are working with observed
data and want to get pretty week formats, use the as_timestamp()
method to generate POSIXct timestamps (observed data generally uses a
"standard" calendar) and then use the base::format() function which
supports the full set of specifiers.