diff --git a/sysutils.go b/sysutils.go
index 66e21ea..dd80424 100644
--- a/sysutils.go
+++ b/sysutils.go
@@ -116,18 +116,18 @@ func IsNumberType(v interface{}) bool {
 	}
 }
 
-func FormatUnixDateTime(sec int64) string {
-	strTime := time.Unix(sec, 0).Format("2006-01-02 15:04:05")
+func FormatUnixDateTime(sec int64, loc *time.Location) string {
+	strTime := time.Unix(sec, 0).In(loc). Format("2006-01-02 15:04:05")
 	return strTime
 }
 
-func FormatUnixDate(sec int64) string {
-	strTime := time.Unix(sec, 0).Format("2006-01-02")
+func FormatUnixDate(sec int64, loc *time.Location) string {
+	strTime := time.Unix(sec, 0).In(loc).Format("2006-01-02")
 	return strTime
 }
 
-func FormatUnixDateEx(sec int64) string {
-	strTime := time.Unix(sec, 0).Format("20060102")
+func FormatUnixDateEx(sec int64, loc *time.Location) string {
+	strTime := time.Unix(sec, 0).In(loc).Format("20060102")
 	return strTime
 }