diff --git a/_posts/2019-01-14-padsize.md b/_posts/2019-01-14-padsize.md
index 8cdf5a9..6440664 100644
--- a/_posts/2019-01-14-padsize.md
+++ b/_posts/2019-01-14-padsize.md
@@ -1,5 +1,6 @@
 ---
 title: padStartにおけるpadSizeの求め方
+date: 2019-01-14 00:00:00 +09:00
 ---
 
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