Use more accurate Duration for Year and Month ranges

cointop/chart.go

@@ -52,10 +52,10 @@ func ChartRangesMap() map[string]time.Duration {
 	return map[string]time.Duration{
 		"All Time": time.Duration(24 * 7 * 4 * 12 * 5 * time.Hour),
 		"YTD":      time.Duration(1 * time.Second), // this will be calculated
-		"1Y":       time.Duration(24 * 7 * 4 * 12 * time.Hour),
-		"6M":       time.Duration(24 * 7 * 4 * 6 * time.Hour),
-		"3M":       time.Duration(24 * 7 * 4 * 3 * time.Hour),
-		"1M":       time.Duration(24 * 7 * 4 * time.Hour),
+		"1Y":       time.Duration(365 * 24 * time.Hour),
+		"6M":       time.Duration(365 / 2 * 24 * time.Hour),
+		"3M":       time.Duration(365 / 4 * 24 * time.Hour),
+		"1M":       time.Duration(365 / 12 * 24 * time.Hour),
 		"7D":       time.Duration(24 * 7 * time.Hour),
 		"3D":       time.Duration(24 * 3 * time.Hour),
 		"24H":      time.Duration(24 * time.Hour),