It was mostly business as usual in Johor Baru (JB) on Friday, marking the start of its new weekend now observed by the state government on Friday and Saturday.
Traffic along the Causeway was relatively smooth in the afternoon and evening, and shops in JB remained open as per normal.
Most private businesses there also told The Straits Times that they have opted to work on Fridays as many have links with Singapore firms.
For example, Malaysian poultry exporter Aqina Farming transports chickens to Singapore six days a week. A spokesman for the company said that it is sticking to its Monday-to-Saturday work week as "the Singapore side cannot possibly accommodate this sort of change".
Johor-based private bus service Causeway Link said that schedules for its seven-day operations would also remain unchanged - at least for now.
Its operations executive, Ms Agnes Tan, said: "We are monitoring the situation but now, it is still too early to judge how the new weekend will affect us."
Johor's return this week to observing Friday and Saturday as rest days - in accordance with the Muslim calendar - was announced on Nov 23. It came after two decades of having weekends on Saturday and Sunday.
Johorians and siblings Chew Jeng Wen, 17, and Jeng Wei, 14, used their first Friday off from school to visit their parents, who work six days a week in Singapore. This is because the family now no longer has a common rest day on Sundays.