Refactor TradingHours struct and validation

date_utils/date_utils.go

@@ -325,8 +325,6 @@ func formatTimestampsWithTimeZoneInSlice(fieldValue reflect.Value, location *tim
 	return nil
 }
 
-// TradingHours represents an array of (StartTime,EndTime) pairs, one for each day of the week.
-// The array is 0 indexed, with 0 being Sunday and 6 being Saturday and 7 being public holidays.
 type TradingHours struct {
 	Monday    TradingHoursDay `json:"monday"`
 	Tuesday   TradingHoursDay `json:"tuesday"`
@@ -460,7 +458,7 @@ type TradingHoursDay struct {
 }
 
 func (day TradingHoursDay) String() string {
-	if day.StartTime == "" && day.EndTime == "" {
+	if day.StartTime == "" || day.EndTime == "" {
 		return "Closed"
 	}