I often have trouble remembering exactly when upcoming events will start, so I added Events on the Agenda to the sidebar. This is a list of events that interest me, along with dates and a link to the official site. A few chess calendar services worth knowing are:-
- FIDE Calendar (Major events)
- FIDE Calendar (Local events)
- USCF Tournament Announcements (TLAs)
The calendars of other national federations can be found by following FIDE Directory > Member Federations.