如何在erlang中将datetime()转换为timestamp()

Question

我需要将{{2012,9,21},{13,21,11}}转换为时间戳().我怎样才能做到这一点？谢谢.

Answer 1

更正版本:

Seconds = calendar:datetime_to_gregorian_seconds(DateTime) - 62167219200,
%% 62167219200 == calendar:datetime_to_gregorian_seconds({{1970, 1, 1}, {0, 0, 0}})
{Seconds div 1000000, Seconds rem 1000000, 0}.