WARNING: This function will be removed soon; see oce-deprecated.
oce.as.POSIXlt(x, tz = "")a date, as for as.POSIXlt, but also including forms in which
the month name appears.
the timezone, as for as.POSIXlt
A POSIXlt object.
It was realized in December of 2016 that this function was not used within
oce, and also that parse_date_time in the
lubridate package was superior and therefore a better choice for
“oce” users.
Other functions that will be removed soon: addColumn,
  ctdAddColumn,
  ctdUpdateHeader,
  findInOrdered, mapMeridians,
  mapZones