How to find when was SQL Server restarted ?

We can find the SQL Server restart time using various methods. Below are the methods which I used to find out when was the SQL Server restarted.

SELECT sqlserver_start_time FROM sys.dm_os_sys_info;

                          (or)

SELECT login_time FROM sys.dm_exec_sessions WHERE session_id = 1;

                          (or)
SELECT start_time FROM sys.traces WHERE is_default = 1

                          (or)
SELECT crdate FROM sysdatabases WHERE NAME = 'tempdb'

                           (or)

SELECT create_date FROM sys.databases WHERE NAME = 'tempdb'