Shopping Hours in KL
For small invidual businesses the hours can vary greatly, but the norm would be from 9am-6:30pm, Monday to Saturday.
Shopping Malls and major emporia open later, usually between 10 and 10:30am until 9:30 or 10pm at night, 7 days a week.
The markets usually between 10 and 10:30am until 9:30 or 10pm at night, 7 days a week. Although some markets only open later in the day from around 5pm through to 10pm at night, and others open between 8am and 5pm in particular food markets.
Time in Kuala Lumpur is UTC/GMT +8 hours.