diff --git a/Cargo.toml b/Cargo.toml
index 5c6033a..b52cf65 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ruc"
-version = "7.8.2"
+version = "7.8.3"
 authors = ["hui.fan@mail.ru"]
 edition = "2021"
 description = "Rust Util Collections"
diff --git a/src/common.rs b/src/common.rs
index 2f2bb91..3c014c1 100644
--- a/src/common.rs
+++ b/src/common.rs
@@ -131,7 +131,7 @@ macro_rules! ts {
 /// generate a 'formated DateTime'
 #[inline(always)]
 pub fn gen_datetime(ts: i64) -> String {
-    let format = time::format_description::parse("[year]-[month]-[day] [hour]:[minute]:[second] [offset_hour sign:mandatory]:[offset_minute]:[offset_second]").unwrap();
+    let format = time::format_description::parse("[year]-[month]-[day] [hour]:[minute]:[second] [offset_hour sign:mandatory]").unwrap();
     time::OffsetDateTime::from_unix_timestamp(ts)
         .unwrap()
         .to_offset(time::UtcOffset::from_hms(8, 0, 0).unwrap())