敬老の日
![](https://groups.oist.jp/sites/default/files/styles/group_image/public/eventimg/1712/oist-logo_big-shisa_little-oist_14.png?itok=mMfjMGuO)
Date
2018年9月17日 (月) 0:00
Description
National holiday.
All-OIST Category:
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National holiday.
Subscribe to the OIST Calendar: Right-click to download, then open in your calendar application.