Pasig kasi maraming branches sila and schedules change, pero best way is to call them directly, usually clinics have morning and afternoon sessions, and some may have extended hours on certain days. A few of my mum friends go there para sa pedia check-ups, so I know they're reliable, but honestly the easiest way is to give them a ring or check their Facebook page para sa updated hours para hindi ka mauubusan ng slot!