ScotRail is urging Dons fans heading to Glasgow for the League Cup semi-final to plan ahead.
The Dons will take on Rangers at Hampden Park on Sunday October 28 at 4.30pm.
The kick-off time for the game was changed following backlash from thousands of fans across Scotland.
ScotRail have said they will putting on extra carriages to help fans get to Glasgow in time for the game, but supporters have been warned that services will be much busier than normal.
In a statement the firm said: “Aberdeen supporters are encouraged to consider their travel options, as the three trains to Glasgow prior to kick off and two trains back to Aberdeen after the match are expected to be very busy.
“Customers heading to the games are advised to allow additional time for travel, as queuing systems will be in place at Glasgow Central and Queen Street prior to kick off, and at Mount Florida/Kings Park and Haymarket after the final whistle.
“Extra staff will be on hand to assist customers and, as with most large events, alcohol bans will be in place.”
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ScotRail head of customer operations Phil Campbell said: ““These are really big games for the teams involved, and we’re looking forward to once again helping fans get to the match to cheer on their side.
“We will be doing everything we can to keep people moving hassle-free, but supporters should plan their journeys in advance at scotrail.co.uk or on the ScotRail app.”