Obtains an instance of LocalDateTime using seconds from the epoch of 1970-01-01T00:00:00Z.

This allows the epoch-second field to be converted to a local date-time. This is primarily intended for low-level conversions rather than general application usage.

Parameters:

epochSecond		the number of seconds from the epoch of 1970-01-01T00:00:00Z
nanoOfSecond		the nanosecond within the second, from 0 to 999,999,999
offset		the zone offset, not null

Returns:  the local date-time, not null

Exceptions:

DateTimeException

if the result exceeds the supported range, or if the nano-of-second is invalid