DatePicker: fix time spinner style (#2961)

packages/date-picker/src/util/index.js

@@ -145,7 +145,7 @@ export const limitRange = function(date, ranges) {
   if (!ranges || !ranges.length) return date;
 
   const len = ranges.length;
-  const format = 'yyyy-MM-dd HH:mm:ss';
+  const format = 'HH:mm:ss';
 
   date = dateUtil.parse(dateUtil.format(date, format), format);
   for (let i = 0; i < len; i++) {

packages/theme-default/src/date-picker/time-spinner.css

@@ -12,7 +12,7 @@
       }
 
       .el-time-spinner__wrapper:nth-child(2) {
-        padding-left: 1%;
+        margin-left: 1%;
       }
     }