The Mountain Road will be closing at 1.15pm with the rest of the course following at 1.30pm.
The four lap Monster Energy Supersport race will set off at 2pm weather permitting.
There will be a Sidecar qualifying session at 3.45pm with the TT Zero qualifiers setting off at 3.55pm.
Following a Subaru lap the roads will reopen from 5 till 6 to allow for people going home after work, the Mountain will remain closed during this hour.
At 6.15pm the RL 360 Superstock four lap race will set off.
Four ferry crossings at risk of disruption
Some Peel homes to be without water later this evening
Temporary traffic lights near iconic TT pub
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Evening ferry cancelled because of weather
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£8.6 million spend by government on software