The second Thursday of each month, 7:00 PM. Only one source reports it.
Earlier checks recorded instances on June 11, July 9 and Aug 13, 2026. The calendar that carries them could not be reached to reconfirm those dates (checked Aug 13, 2026) [s1]. A dated listing for a separate show at the venue in July 2026 confirms it remains active and that the named host performs [s2]. A listing site separately claims a weekly Thursday 8 PM mic, conflicting with the recorded monthly cadence — an unconfirmed lead.
A page on zenbarnvt.com lists this night, but may not be current.
Weekly on Wednesdays, 9:30 PM. Only one source reports it.
The only source naming this event directly is an unreadable Facebook event page whose URL suggests every Wednesday at 9:30 PM, but it could not be opened or dated. A promoter named Al's Pals runs a similar 'Full Band Open Mic' at Zenbarn in Waterbury Center, checked Aug 13, 2026 [s1]. That page says nothing about the Wednesday night at Charlie-O's. No dated source confirms the open mic here.
Source
Last checked
Zenbarn event page, Full Band Open Mic with Al's Pals (page no longer available)· web page · zenbarnvt.com
A Venue's Website read on 2026-09-25 disagrees with the Friday night here: the library's poetry open mic runs once a year during April's PoemCity, not weekly on Fridays. Which is current is unresolved — check before travelling. Something about this has changed recently — confirm before going.