CX807 Diversion
Fascinating diversion.....
I imagine a medical emergency. The aircraft was on the ground in Anchorage for just 47 minutes.
Then from Anchorage to Tokyo Haneda (Narita was closed at this hour due to the curfew). By this point, the crew would need to be changed as they'd be flying over their allowable duty time. A 90 minute stop to pick up new crew at Haneda and finally scheduled to arrive in HKG at 0456 - or 8 hours and 56 minutes behind schedule.
Well, at least that's my theory.....
This is so unusual. I'm sure your CX807 will be uneventful on 6 Apr.