1.Date：
6 to 6 a.m. (UTC+8) Monday to Tuesday, Jan. 23-24

2.PLA activities：
1 PLA aircraft and 4 PLAN vessels around Taiwan were detected by 6 a.m.(UTC+8) today. R.O.C. Armed Forces have monitored the situation and tasked CAP aircraft, Navy vessels, and land-based missile systems to respond these activities.