水工研同窓会 Published on 20th March 20198th January 2026 by yasuda-t Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: 27th April 2019 all-day Asia/Tokyo Timezone 2019-04-27T00:00:00+09:00 2019-04-28T00:00:00+09:00 Where: 第2学舎食堂