fix: make backend accept static date format allowed by frontend

Author: zumoshi

time/parse.go

@@ -44,10 +44,14 @@ func Validate(value string) error {
 
 // ParseTime parses time.
 func ParseTime(now time.Time, value string, startOf bool, weekday time.Weekday) (time.Time, error) {
-	parse, err := time.Parse(time.RFC3339, value)
-	if err == nil {
-		return parse, nil
+	if rfc3339, err := time.Parse(time.RFC3339, value); err == nil {
+		return rfc3339, nil
+	}
+	if dateTime, err := time.Parse(time.DateTime, value); err == nil {
+		return dateTime, nil
+	}
+	if dateTimeNoSeconds, err := time.Parse(time.DateTime, value+":00"); err == nil {
+		return dateTimeNoSeconds, nil
 	}
-
 	return timemath.Parse(now, value, startOf, weekday)
 }