@staticmethod<EOL><INDENT>def list():<DEDENT>
with winreg.ConnectRegistry(None, winreg.HKEY_LOCAL_MACHINE) as handle:<EOL><INDENT>with winreg.OpenKey(handle, TZKEYNAME) as tzkey:<EOL><INDENT>result = [winreg.EnumKey(tzkey, i)<EOL>for i in range(winreg.QueryInfoKey(tzkey)[<NUM_LIT:0>])]<EOL><DEDENT><DEDENT>return result<EOL>
Return a list of all time zones known to the system.