Expose time.LoadLocation to template system

expr/time/time.go

@@ -8,6 +8,7 @@ func NewExprs() map[string]interface{} {
 	return map[string]interface{}{
 		"Parse": parse,
 		"Now":   now,
+		"LoadLocation": load_location,
 	}
 }
 
@@ -22,3 +23,11 @@ func parse(timestamp string) time.Time {
 func now() time.Time {
 	return time.Now()
 }
+
+func load_location(location string) time.Location {
+	loc, err := time.LoadLocation(location)
+	if err != nil {
+		panic(err)
+	}
+	return loc
+}