--- lib/stdlib/src/calendar.erl.orig +++ lib/stdlib/src/calendar.erl @@ -215,11 +215,19 @@ -spec local_time_to_universal_time_dst(t_datetime1970()) -> [t_datetime1970()]. local_time_to_universal_time_dst(DateTime) -> - UtDst = erlang:localtime_to_universaltime(DateTime, true), - Ut = erlang:localtime_to_universaltime(DateTime, false), %% Reverse check the universal times - LtDst = erlang:universaltime_to_localtime(UtDst), - Lt = erlang:universaltime_to_localtime(Ut), + {UtDst, LtDst} = + try + UtDst0 = erlang:localtime_to_universaltime(DateTime, true), + {UtDst0, erlang:universaltime_to_localtime(UtDst0)} + catch error:badarg -> {error, error} + end, + {Ut, Lt} = + try + Ut0 = erlang:localtime_to_universaltime(DateTime, false), + {Ut0, erlang:universaltime_to_localtime(Ut0)} + catch error:badarg -> {error, error} + end, %% Return the valid universal times case {LtDst,Lt} of {DateTime,DateTime} when UtDst =/= Ut ->