On 26/04/2021 3:08 p.m., Jeff Reichman wrote: > Whoops happy fingers yes I meant “or” > POSIXct are easier to work with as data (e.g. a column in a dataframe). POSIXlt is easier to work with as dates & times, and has a bigger range. See details of the comparison in the ?POSIXt help page. Duncan Murdoch