.HK Registry
Scheduled for Nov 30, 08:00 - 13:00 UTC
During this scheduled system maintenance by the registry, the following services may be unavailable:

Availability Checks
Whois Services
Domain Purchases
Domain Renewals
Domain Updates

For a list of affected TLD's, please look the registry up in the following spreadsheet:
Posted Oct 31, 2019 - 13:03 UTC
This scheduled maintenance affects: Domain Services (Other gTLDs).