Add date for Student Center closure

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@@ -14,7 +14,7 @@ computers, and maybe [[get involved|join]].
 We have [meetings](https://stuff.mit.edu/afs/sipb/admin/minutes/) every Monday at 19:30 (now also on Zoom!).
 You can find out what's abuzz in the SIPB community at [Planet SIPB](https://sipb.mit.edu/planet).  We host a number of events, which are enumerated on our [[calendar]].
 
-Due to the [renovation of the Student Center](https://studentlife.mit.edu/about/new-vision-student-center/project-updates-and-faq), **the SIPB office is temporarily closed. Until further notice, meetings will instead be held in a classroom on main campus (TBD)**, on Mondays at 19:30 and with the option of remote attendance as always.
+Due to the [renovation of the Student Center](https://studentlife.mit.edu/about/new-vision-student-center/project-updates-and-faq), **the SIPB office is temporarily closed effective April 16, 2023. Until further notice, meetings will instead be held in a classroom on main campus (TBD)**, on Mondays at 19:30 and with the option of remote attendance as always.
 
 **If you want to get involved with SIPB / be part of the discussion please [join Mattermost](https://mattermost.xvm.mit.edu/signup_user_complete/?id=pnfpw5qkpjnxxrq319ynh94eke).**