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?

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