For faster scheduling of games, your opponent can see times that you have marked as bad. You may adjust your bad times as often as you want.
"Always bad" means: These times are bad all seven days of the week, e.g. your sleeping hours, provided you do not work in different shifts.
"Often bad" means: These times are bad a few days a week, e.g. your school/working hours Monday to Friday.
On top of your Game forum, compare your own and your opponent's bad times bars. If possible, offer hours not listed as bad times by your opponent. In the following example, both players have marked their bad times:
There is a "good times window" left: between 1600 and 2100 FICS server time. Offering to start the game in that "good times window" may likely produce a match.