Network time synchronisation is how every computer, server and connected device in Singapore agrees on what time it is. Most people never think about it. But underneath every transaction and every access log is a chain of synchronised clocks and right at the top of that chain sits an atomic clock.

Ordinary clocks keep time by counting vibrations in a quartz crystal. Trouble is, those vibrations shift slightly with temperature, age and voltage. That’s why it drifts. Atomic clocks count the frequency of a specific energy transition inside an atom. In the caesium-133 standard, the atom that defines the official SI second, this transition is so stable and predictable.

Do you know? You’d need longer than a lifetime to accumulate one second of error!

The A*STAR National Metrology Centre (NMC) produces the country’s Coordinated Universal Time as UTC (SG) and advanced by 8 hours to produce Singapore Standard Time (SST). NMC also hosts several Stratum 1 time servers that distribute this reference via NTP, accessible to organisations in Singapore that need traceable, authoritative time. Businesses can sync directly to Singapore’s national standard at no cost.

How NTP & Network Time Synchronisation Distributes Atomic Precision to Your Office

Atomic Clocks are everywhere and you interact with atomic clocks every day without realising it… every transaction, security log, and communication needs to happen in perfectly and in uninterrupted harmony.

This atomic precision reaches your office through network time synchronisation. An NTP time server takes the reference from NMC and distributes it across your network, ensuring every computer, device and system agrees on the same second. NMC provides a standard time synchronisation service to organisations that need precise, trustworthy timing, so businesses can sync their systems directly to Singapore’s national standard. 

A public NTP feed from NMC is a starting point but it’s not a complete architecture. Syncing over the open internet gives you one path (if it drops, your systems drift), no authentication (you trust whatever answers), and no holdover when the reference is unavailable. A dedicated time server on your premises solves all three: it acts as the local authority, maintains accuracy during outages, and can verify its sources rather than accepting any response.

What Happens When Network Time Synchronisation Fails

If your organisation’s systems aren’t synchronised to an accurate time source:

Security logs become unreliable for audits and forensic investigations

Access control systems may fail or log incorrect entries

Inaccurate timestamps corrupt financial transaction records and create disputes

Courts may reject CCTV footage when timestamps cannot be verified

And the list goes on….

Accurate network time synchronisation is not a feature you add after the fact. It is an assumption every other system in your building is already making and the only way to know it is working correctly is to check before something goes wrong. None of it announces itself and you will only find out during the audit…..