Adobe Source Sans 3 version 3.052 is used for timetable clocks.

Official project:
https://github.com/adobe-fonts/source-sans

Official release:
https://github.com/adobe-fonts/source-sans/releases/tag/3.052R

Bundled unmodified file from TTF-source-sans-3.052R.zip:
- SourceSans3-Regular.ttf
  SHA-256: 4644C81B86EC9CAAA76B634889968ED3C4F4F52F054855933ACC7C2B21E53B0F

The font file is unmodified and remains licensed under the SIL Open Font
License 1.1. The complete license is included as
FONT_LICENSE_SOURCE_SANS_3_OFL.txt.
