As someone has already said, it is up to the parish council to decide when meetings are held so yes you can certainly ask for meetings, committee or full council, to be held at times which are more convenient. I do understand that sometimes committee meetings might be scheduled for a daytime if it proves difficult to get a quorum for an evening meeting for example, but given that meetings are/must be open to the public I'd argue that other than the occasional daytime slot, an evening meeting is likely to be more accessible to the public as well as councillors.