I charge $5/day for overtime in the morning if they need to drop off before 7:30 am and an additional $5/day if you need care past 4:30 ... some clients arrange it for just 'specific days' each week and others might need it consistently daily.
Reality is it is still cheaper than 'centre care' would be to get that same extended hour service but they get the 'pro' of having the same staff at arrival and departure verses centre care and it compensates me for working 'overtime' like any other person in the working world would get!