Hamer Technical · Time Infrastructure

GPS Stratum-1 Time Service

A public NTP server disciplined by GPS + a hardware PPS pulse, and the live status of the receiver behind it. No account, no rate limits beyond standard NTP courtesy.

Zulu (UTC)

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This browser's clock, not the server's — for the server's actual sync quality see Clock below.

Local

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Sub-millisecond digits are display resolution, not measured accuracy.

Clock

Stratum

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Reference

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Offset

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Error bound

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GPS Receiver

Fix

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Satellites used

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Satellites visible

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Peak SNR

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Signal quality only — no location data is published.

Dilution of Precision

HDOP

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PDOP

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VDOP

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TDOP

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GDOP

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XDOP

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YDOP

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Lower is better — a function of satellite geometry, not signal strength. Fields the receiver doesn't report show as —.

Estimated Error

Longitude

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Latitude

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Altitude

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Speed

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Track

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Time

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1-sigma error magnitudes reported by the receiver — not the errors themselves, and never a position.

Satellites

PRN	Elevation	Azimuth	SNR	Used
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Signal geometry only — no location data is published.

24h Offset History — Tracked Public Servers

No history yet.

Offset of each publicly tracked reference server vs. this host's own clock, last 24h. Y-axis is clamped to the 5th–95th percentile of the window so an occasional outlier doesn't flatten the rest — extreme points are drawn at the edge, not hidden.

Use it

Add as an NTP source (chrony):

server time.hamertechnical.com.au iburst

Or classic ntpd:

server time.hamertechnical.com.au iburst

Quick test:

ntpdate -q time.hamertechnical.com.au

What's underneath

Receiver	u-blox NEO-6M, GPS L1 C/A
Discipline	1PPS hardware pulse + SHM (chrony)
NTP daemon	chrony 4.6
Fallback sources	Google, Apple, Cloudflare, AWS, NIST, AU pool