[hermitdev]

> that EU regulation requires their timestamps to be within 100 microseconds of UTC,

It's the same in the US. It's covered under CAT NMS (Consolidated Audit Trail, National Market System). Probably too much information at: https://www.catnmsplan.com/

[jeffbee]

Yes, and the fact that this has been a global regulation for years suggests that it isn't all that special. Outfits like Goldman Sachs meet this regulation with fewer blogs.