update db and added weight

internal/modules/times/times.go

@@ -1,14 +1,36 @@
 package times
 
-import "time"
+import (
+	"time"
+)
+
+var (
+	loc *time.Location
+)
+
+func init() {
+	loc, _ = time.LoadLocation("Asia/Novosibirsk")
+}
+
+func GetNow() time.Time {
+	t := time.Now().In(loc)
+	return t
+}
 
 func GetStartDay() time.Time {
-	loc, _ := time.LoadLocation("Asia/Novosibirsk")
-	t := time.Now().In(loc)
+	t := GetNow()
 	t = time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, loc)
 	return t
 }
 
+func GetStartDayMinus(days int) time.Time {
+	t := GetStartDay()
+	for i := 0; i < days; i++ {
+		t = t.Add(-24 * time.Hour)	
+	}
+	return t
+}
+
 func GetStartWeek() time.Time {
 	t := GetStartDay()
 	t = t.Add(-6 * 24 * time.Hour)