Timing Solutions for Finance: Why Time Is Becoming a Compliance and Resilience Issue

Finance depends on accurate time. Many struggle to find a timing solution for finance sector.

Every trade, payment, order, market data event and audit trail relies on timestamps that can be trusted. But the challenge is no longer just accuracy. It is resilience, visibility and evidence.

For banks, fintech platforms, trading venues, payment providers and market infrastructure operators, timing should now be treated as critical infrastructure, not a background network setting.

Why timing matters more in financial services

In finance, time helps prove what happened, when it happened and in what order.

That matters for transaction sequencing, best execution, latency analysis, market surveillance, dispute resolution, cyber investigations and operational resilience. If systems disagree on time, the impact can quickly move from a technical issue to a compliance, risk and customer-confidence issue.

MiFID II placed clear focus on clock synchronisation and timestamping for trading venues and market participants, with business clocks synchronised to Coordinated Universal Time, UTC. RTS 25 sets out requirements for the accuracy of business clocks and the traceability of timestamps to UTC, making timing evidence an important part of audit readiness.

This is an area where edgeTime already supports real-world financial infrastructure. Through Edge Networks UK, our team carries out RTS 25 timing audits for a number of leading financial institutions worldwide, helping them assess timing performance, identify gaps and produce evidence that supports internal governance, audit preparation and regulatory confidence.

DORA adds another layer. Since 17 January 2025, the EU Digital Operational Resilience Act has applied to a wide range of financial entities, requiring them to strengthen their ability to withstand, respond to and recover from ICT disruption.

Timing is not always named as the headline issue. But reliable timing supports the evidence layer behind resilience: logs, event correlation, incident timelines, monitoring data and audit-ready reporting.

The best timing solution is not just a grandmaster clock

A high-quality grandmaster can be important, but buying a product alone does not solve the timing problem.

A finance-grade timing architecture needs to answer practical questions:

Can we prove where our time comes from?
Are we measuring timing accuracy and drift?
Can we see when timing quality changes?
Do we keep operating if GNSS/GPS is degraded or unavailable?
Are we able to produce evidence for compliance, audit and incident review?
Can we support multiple sites, platforms and technology generations?

That is why resilient timing infrastructure needs to be designed as a complete architecture, covering source, distribution, monitoring, holdover, operational support and reporting.

NTP, PTP, SyncE and White Rabbit explained simply

NTP is widely used for general IT time synchronisation. It is useful for many enterprise systems, but it is not always suitable where very high precision or deterministic performance is needed.

PTP, defined by IEEE 1588, is designed for more accurate clock synchronisation across networked systems. It is often used where timing performance needs to move beyond standard IT requirements.

SyncE helps distribute frequency synchronisation through Ethernet networks. In timing architectures, it can support stable frequency delivery alongside protocols such as PTP.

White Rabbit extends PTP techniques to support sub-nanosecond synchronisation over fibre-based Ethernet networks. It is not needed for every finance use case, but it can be relevant where very high precision, distributed timestamping or ultra-low timing uncertainty is required.

The important point is this: the right protocol depends on the application, risk profile, network design and evidence requirement.

Why GNSS should not be the only resilience plan

GNSS/GPS remains a common timing source, but it should not be treated as the whole resilience strategy.

Finance infrastructure should consider what happens if satellite signals are jammed, spoofed, degraded, obstructed or unavailable. Resilient timing may involve multiple reference sources, disciplined holdover, local timing capability, monitoring, alerting and clear failover behaviour.

For regulated and operationally critical environments, it is not enough to assume time is accurate. You need visibility into whether it is accurate, whether it remains trusted and what happens when conditions change.

Where edgeTime service models fit

Not every organisation wants to own, refresh and manage every layer of timing infrastructure itself.

That is where edgeTime’s Timing as a Service approach can help. edgeTime supports different ownership and service models depending on the customer’s estate, risk profile and operational requirements.

With Core TaaS, edgeTime can manage the full timing stack while the customer consumes the timing output.

Hosted Time Service, Edge-owned timing infrastructure can be hosted for the customer, supporting proximity and control without the full ownership burden.

With edgeTime Overlay, timing capability can be layered across an existing network or estate, helping organisations improve distribution, visibility and assurance without starting again.

With Compliance as a Service, EdgeTime can support monitoring, validation, drift measurement, RTS 25 timing audits and audit-ready reporting across financial timing environments.

For complex estates, the Hybrid model allows ownership and responsibility to vary by site, service layer or migration stage.

The goal is simple: help finance and fintech organisations move from “we have time sync” to “we can evidence accurate, resilient and operationally supported time”.

To view our service models in more details, check them out here.

FAQ

What is the best timing solution for finance?

The best timing solution for finance depends on the application. Trading, payments, market data, audit systems and operational logs may all have different requirements. A strong approach usually combines accurate time sources, resilient distribution, monitoring, reporting and support. To find out more about how we can support finance, visit our finance specific page – Finance by edgeTime.

Is PTP better than NTP for financial services?

PTP can support higher-precision timing than NTP in suitable network environments. However, the best choice depends on the required accuracy, infrastructure design, application needs and compliance evidence requirements.

Where does White Rabbit fit in financial timing?

White Rabbit may be relevant where finance organisations need sub-nanosecond synchronisation, very precise timestamping or high-performance time distribution across fibre networks. It is not required for every finance use case.

If your finance infrastructure depends on accurate, resilient and provable time, edgeTime can help you assess your current timing estate and build a timing model designed around accuracy, visibility and audit readiness.