public static function maybe_get_tz_name( $timezone ) {
		if ( ! self::is_utc_offset( $timezone ) && ! is_numeric( $timezone ) ) {
			return $timezone;
		}

		if ( ! is_numeric( $timezone ) ) {
			$offset = str_replace( 'utc', '', trim( strtolower( $timezone ) ) );
		} else {
			$offset = $timezone;
		}


		// try to get timezone from gmt_offset, respecting daylight savings
		$timezone = timezone_name_from_abbr( null, $offset * 3600, true );

		// if that didn't work, maybe they don't have daylight savings
		if ( false === $timezone ) {
			$timezone = timezone_name_from_abbr( null, $offset * 3600, false );
		}

		// and if THAT didn't work, round the gmt_offset down and then try to get the timezone respecting daylight savings
		if ( false === $timezone ) {
			$timezone = timezone_name_from_abbr( null, (int) $offset * 3600, true );
		}

		// lastly if that didn't work, round the gmt_offset down and maybe that TZ doesn't do daylight savings
		if ( false === $timezone ) {
			$timezone = timezone_name_from_abbr( null, (int) $offset * 3600, false );
		}

		return $timezone;
	}