Timestamps generated by cmake TIMESTAMP function respect SOURCE_DATE_EPOCH, but use the local timezone. In CMakeLists.txt, uses of the TIMESTAMP function need to specify the timezone as UTC: . string(TIMESTAMP CURRENT_TIME "%Y-%m-%d" UTC) . Likely affected packages: https://codesearch.debian.net/search?q=string%5C%28TIMESTAMP.*%5B%5EU%5D%5B%5ET%5D%5B%5EC%5D%5C%29&literal=0
Our notes about issues affecting packages are stored in notes.git and are targeted at packages in Debian in 'unstable/amd64' (unless they say otherwise).