# Article 11 — Reference time (Article 22c(1) of Regulation (EU) No 600/2014) **Commission Delegated Regulation (EU) 2025/1155 · binding · OJ L, 2025/1155, 3.11.2025 · dated 12 Jun 2025 [in force]** *In force · Commission Delegated Regulation (EU) 2025/1155, OJ L, 2025/1155, 3.11.2025 · Checked against EUR-Lex on 26 Oct 2026 · [Official source](https://eur-lex.europa.eu/eli/reg_del/2025/1155/oj/eng)* Operators of trading venues and their members, participants or users, systematic internalisers, DPEs, APAs and CTPs shall synchronise the business clocks they use to record the date and time of any reportable event with the Coordinated Universal Time (‘UTC’) issued and maintained by the timing centres listed in the database maintained by the Bureau international des poids et mesures. Operators of trading venues and their members, participants or users, systematic internalisers, DPEs, APAs and CTPs may also synchronise the business clocks they use to record the date and time of any reportable event with UTC disseminated by a satellite system, provided that any offset from UTC is accounted for and removed from the timestamp.