RE: Upgrade of SQL 2016 evaluation version to SQL 2016 standard runtime edition
Mine makes no mention of runtime either. Which is why I think the runtime name is just a legal term.
Microsoft SQL Server 2019 (RTM-GDR) (KB4517790) - 15.0.2070.41 (X64) Oct 28 2019 19:56:59
Copyright (C) 2019 Microsoft Corporation Standard Edition (64-bit) on Windows 10 Pro 10.0 <X64> (Build 19041: ) (Hypervisor)
What does this tell you? Evaluation copies expire 180 days after installation date.
SELECT
@@SERVERNAME as SERVERNAME,
create_date as 'INSTALLATIONDATE',
SERVERPROPERTY('EDITION') as 'Version',
DATEADD(DD, 180, CREATE_DATE) AS 'EXPIRY DATE'
FROM SYS.SERVER_PRINCIPALS
WHERE SID = 0X010100000000000512000000