diff --git a/init.go b/init.go
new file mode 100644
index 0000000..5c0487b
--- /dev/null
+++ b/init.go
@@ -0,0 +1,4 @@
+package q5
+
+func init() {
+}
diff --git a/sysutils.go b/sysutils.go
index e88aa58..5281c1b 100644
--- a/sysutils.go
+++ b/sysutils.go
@@ -8,10 +8,18 @@ import (
 	"reflect"
 )
 
-func GetDaySeconds(seconds int64) int64 {
+func GetTimeZone() int64 {
 	return 0
 }
 
+func GetDaySeconds(seconds int64) int64 {
+	return GetDaySecondsEx(seconds, GetTimeZone())
+}
+
+func GetDaySecondsEx(seconds int64, timeZone int64) int64 {
+	return ((seconds + timeZone * 3600)/3600/24 + 1) * 3600 * 24 - 3600 * timeZone;
+}
+
 func GetTickCount() int64 {
 	return time.Now().UnixNano() / 1e6
 }