Ambiguous notice

Saw this at the Singapore Conference Hall some time back. Apparently one Catholic church (or sorts) is using this venue for their services. Hmm... So does this notice mean that there's NO Catholic prayer for that day, or "NO" stands for something else? And does it mean it's for To(day) or for T(w)o Day(s)...?

Anyway, now that I know how to post photos up on this blog, do expect more photos soon...! :)