android - How to convert firebase timestamp into date and time as Date is deprecated -

how convert servervalue.timestamp simpledateformat("dd mm yyyy") date deprecated not able use , way use calender

you cannot use server.timestamp date. doc says:

a placeholder value auto-populating current timestamp (time since unix epoch, in milliseconds) determined firebase servers

this means when setvalue() or updatechildren(), can put constant in map tell server put epoch time in node instead. example:

mref = firebasedatabase.getinstance().child("whatever/path/in/your/database"); mref.setvalue( server.timestamp ); 

this set in <your firebase>/whatever/path/in/your/database long 149141530600. current epoch time fetched while writing answer. corresponds number of milliseconds passed since january 1st 1970 when copied value. then, if have listener node, can calendar using:

long time = datasnapshot.getvalue(long.class); calendar calendar = gregoriancalendar.getinstance(); calendar.settimeinmillis(time); 

if want time server set (saving in database pointless), can use special node:

`firebasedatabase.getinstance().getreference(".info/servertimeoffset");` 

a listener node returns double represents approximative offset between device time , server time. can set calendar using:

calendar.settimeinmillis(system.currenttimemillis() + offset);