True time, honestly measured.

For people who care what time it actually is

Network admins, sysadmins, cell techs, and the incurably precise. TrueNTP cross-checks Apple, Cloudflare, NIST, and Microsoft against each other, weights each answer by network quality, rejects outliers, and tells you its uncertainty instead of pretending there is none.

Highlights

• Hero clock — corrected true time ticking smoothly, anchored to the monotonic clock so OS clock steps can't fool it.
• Device drift — how far ahead or behind your clock really is, from a 1/RTT-weighted multi-server offset.
• Per-server detail — stratum, offset, round-trip time, raw NTP fields, and per-sample scatter.
• Offset history — a rolling timeline of your clock's behavior.
• GNSS cross-check (pro, Android) — reads time straight from GPS satellites as an independent, offline-capable reference.