Update agenda.md

Author: aphillips

meetings/agenda.md

@@ -1,9 +1,9 @@
 # MessageFormat Subcommittee Agenda
 
 This is the agenda document for upcoming calls of the MessageFormat subcommittee. We normally meet bi-weekly 
-(every two weeks) on Mondays at 9:30 Pacific (`America/Los_Angeles`). This is currently UTC+8. 
+(every two weeks) on Mondays at 9:30 Pacific (`America/Los_Angeles`). This is currently UTC+7. 
 
-This will became UTC+7 before the most recent call on 2023-02-13. Since the USA switches to Daylight/Summer time before most other countries, this may affect the wall time of this call for you.
+This became UTC+7 before the most recent call on 2023-02-13. Since the USA switches to Daylight/Summer time before most other countries, this may affect the wall time of this call for you.
 
 See [here](https://www.timeanddate.com/worldclock/converter.html?iso=20230123T173000&p1=224&p2=248&p3=136&p4=179&p5=33&p6=101&p7=268) for your local time.