I've been trying to change the timezone to a specific one like 'Asia/Hong_Kong' but it's not working. Basically it only works with 'local' and 'UTC'.

Someone please helps .

Here is my config: 

" 
header: {
    left: 'prev,next',
    center: 'title',
    right: ''
},
theme: false,
firstDay: 0,
isRTL: false,
weekends: "+If(Weekend2Show, "true", "false")+",
fixedWeekCount: false,
weekNumbers: false,
height: 'parent',
slotEventOverlap: false,
nowIndicator: true,
contentHeight: 'auto',
defaultView: 'timeGridWeek',
allDaySlot: false,
allDayText: 'all-day',
axisFormat: 'h(:mm) a',
slotDuration: '00:30:00',
snapDuration: '01:00:00',
minTime: '00:00:00',
maxTime: '24:00:00',
buttonText: {
    today: 'today',
    month: 'month',
    week: 'week',
    day: 'day'                
},
monthNames: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
monthNamesShort: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
dayNames: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
dayNamesShort: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
columnHeaderFormat: 'ddd D/M',
selectable: true,
selectHelper: true,
allDayDefault: false,
editable: false,
displayEventTime: false,
handleWindowResize: true,
scrollTime: '09:00:00',
slotLabelFormat:'HH:mm',
timeZone: 'Asia/Hong_Kong'
"