Convert to a date and time without a time zone? [duplicate]

Question

I have a time in the format of "1/1/2010 10:00". I would like to convert this to a time object. This time is a company time based in Calgary, Alberta. Please note there is no daylight savings adjustment made in the company time. How would I convert this to a date-time object?

Answer 1

You can use as.POSIXct to create the date/time object. Looks like Calgary, Alberta is UTC-07:00 as far as time zones go, so you can do

strptime("1/1/2010 10:00", format="%m/%d/%Y %H:%M", tz="Etc/GMT-7")

(assuming month/day/year format -- see ?strptime for other format options). Rather than specifying the true time zone, you could always use "GMT" instead.