It's fine.

And honestly, I'm on F-chat almost every day, it's just that my hours are a bit wonky, due to me being a night owl. I usually get on the computer sometime between noon and 2PM my time (Mountain Time Zone, or GMT-7 [Currently on Daylight Savings Time]) and I start shutting down my computer so I can go to bed at around 2:30 AM. Also, on Mondays I have shopping expeditions that I go on almost as soon as I'm able, which delays me sometimes to after 2PM, and I have local tabletop gaming on Mondays as well, from 6PM to 8PM, meaning I usually get off the computer at 5:30 and get back on sometime after 9.

As long as you keep that schedule in mind, if you ping me on F-Chat (Characters are Luna Hawke, Homura Tokiha, and Angela Asuno) within the timeframes that I am at the computer, I should be able to answer. However, YOU have to be the one to initiate contact - I multitask enough that I likely won't have the presence of mind to ping you if I see you on.