scala - Always get "1970" when extracting a year from timestamp -


i have timestamp "1461819600". execute code in distributed environment val campaign_startdate_year: string = utils.getyear(campaign_startdate_timestamp).tostring

the problem same year 1970. might reason of it?

import com.github.nscala_time.time.imports._  def getyear(timestamp: any): int = {     var dt = 2017     if (!timestamp.tostring.isempty)     {       dt = new datetime(timestamp.tostring.tolong).getyear // tolong should multiplied 1000 millisecond value     }     dt   }

the same issue occurs when want day of month. 17 instead of 28.

  def getday(timestamp: any): int = {     var dt = 1     if (!timestamp.tostring.isempty)     {       dt = new datetime(timestamp.tostring.tolong).getdayofyear     }     dt   }

the timestamp have number of seconds since 01-01-1970, 00:00:00 utc.

java (and scala) use timestamps number of milliseconds since 01-01-1970, 00:00:00 utc.

in other words, need multiply number 1000.


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