英联杯半决赛开球时间：首回合切尔西1月15日4：00战阿森纳（英联杯半决赛首回合：切尔西vs阿森纳，1月15日凌晨4点开球）

Clarifying timezone needs

I realize I need to know the year first, especially if it's January 15. The EFL Cup semifinals actually took place on January 6 and 13, but that's not our focus. I want to make sure I don't jump to conclusions. My response could be: "Do you want me to 1) convert for your timezone; 2) create a calendar (.ics); 3) set reminders/countdowns; 4) provide broadcasts/venue/current teams' status?" I could also ask for timezone details to be sure. Let's craft this carefully!