Many months? At the earliest?

"Debate over the tanks was resolved in recent days with a compromise. The U.S. tanks — to be purchased from manufacturers rather than transferred from existing American military stockpiles — will not arrive in Ukraine for many months, at the earliest. Administration officials have emphasized that the M1s are part of long-range planning for Ukraine’s armed forces rather than weapons that will be put to immediate use."

https://www.washingtonpost.com/world/2023/01/25/germany-leopard-tanks-abrams-ukraine/