The Artemis II Wet Dress Rehearsal has been moved to Monday Feb 2, due to the cold weather in Florida.
With this change, the first potential opportunity to launch is no earlier than Sunday, Feb. 8.
"During the current cold weather, engineers have kept Orion powered and have configured its heaters for the colder temperatures. Purges, used to maintain proper environmental conditions for elements of the spacecraft and rocket, are also configured for the weather."