charToPOSIXct | R Documentation |
This function uses the Boost Date_Time library to parse
datetimes from strings. It returns a vector of POSIXct
objects. These represent dates and time as (possibly
fractional) seconds since the ‘epoch’ of January 1, 1970.
A timezone can be set, if none is supplied ‘UTC’ is set.
charToPOSIXct(sv, tz = "UTC")
sv |
A vector of type character with datetime expressions in ISO format to be parsed and converted. |
tz |
A string with the timezone, defaults to ‘UTC’ if unset |
A single standard ISO format ‘YYYY-MM-DD HH:MM:SS’ (with
optional trailing fractional seconds) is tried. In the case of
parsing failure a NA
value is returned. See the function
toPOSIXct
for more general input format
Fractional seconds are supported as well. As R itself only supports microseconds, the Boost compile-time option for nano-second resolution has not been enabled.
A vector of ‘POSIXct’ elements.
Dirk Eddelbuettel
times <- c("2004-03-21 12:45:33.123456", "2004-03-21 12:45:34") charToPOSIXct(times)
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