Converts this {@code LocalTime} to the number of seconds since the epoch
of 1970-01-01T00:00:00Z.
!(p)
This combines this local time with the specified date and
offset to calculate the epoch-second value, which is the
number of elapsed seconds from 1970-01-01T00:00:00Z.
Instants on the time-line after the epoch are positive, earlier
are negative.
@param date the local date, not null
@param offset the zone offset, not null
@return the number of seconds since the epoch of 1970-01-01T00:00:00Z, may be negative
@since 9
Converts this {@code LocalTime} to the number of seconds since the epoch of 1970-01-01T00:00:00Z. !(p) This combines this local time with the specified date and offset to calculate the epoch-second value, which is the number of elapsed seconds from 1970-01-01T00:00:00Z. Instants on the time-line after the epoch are positive, earlier are negative.
@param date the local date, not null @param offset the zone offset, not null @return the number of seconds since the epoch of 1970-01-01T00:00:00Z, may be negative @since 9