=IF(Tidetime<>"";
	Ifs(
		Tidelevel<=0,45;"No Lagoon";
		Tidelevel<1;Ifs(
				Tidetime<TIMEVALUE("11:00");"too early";
				AND(Tidetime>=TIMEVALUE("11:00");Tidetime<TIMEVALUE("11:30"));"Station: 08:00";
				AND(Tidetime>=TIMEVALUE("11:30");Tidetime<=Sunset+TIMEVALUE("0:15"));"Station: "&Text(Timevalue(round(Tidetime*96)/96-"3:30");"hh:mm");
				Tidetime>Sunset;"too late"
			);
		Tidelevel>=1;Ifs(
				Tidetime<TIMEVALUE("11:00");"too early";
				AND(Tidetime>=TIMEVALUE("11:00");Tidetime<TIMEVALUE("12:00"));"Station: 08:00";
				AND(Tidetime>=TIMEVALUE("12:00");Tidetime<=Sunset+TIMEVALUE("0:15"));"Station: "&Text(Timevalue(round(Tidetime*96)/96-"4:00");"hh:mm");
				Tidetime>Sunset;"too late"
			)
	)		
;"")