Nominet Registry
Scheduled for May 8, 06:00 - 08:00 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 17 days ago. Apr 04, 2019 - 06:55 UTC
This scheduled maintenance affects: Domain Services (Core ccTLDs, Other gTLDs).