public static ZoneOffset ofTotalSeconds (int totalSeconds)

Obtains an instance of ZoneOffset specifying the total offset in seconds

The offset must be in the range -18:00 to +18:00, which corresponds to -64800 to +64800.

totalSeconds    the total time-zone offset in seconds, from -64800 to +64800

Returns:  the ZoneOffset, not null

DateTimeException    if the offset is not in the required range