Hello, we are receiving some data, sample below - with a weird time/date stamp format, we need some help with R on converting this time date stamp to a useable field in R, date and time in a data-frame. The developer says its the number of milliseconds since midnight, January 1, 1970.
sample: *1232558018624* --------------------- How do I interpret the time stamp? Is there a date, i need a date and time. site_id,survey_id,version_id,survey_start_ts,survey_question_id,start_ts,end_ts,answer 2,registration,1,1232558018625,z1,*1232558018624*,*1232558266179*,4 Answer: The timestamp is a number representing the exact date and time. it is the number of milliseconds since midnight, January 1, 1970. Are you using it in the DB or R? I am not sure about R's conversion of numbers and dates. is there a way to add a number of seconds or milliseconds to a date in R? [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.