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Precise Time and Time Interval (PTTI) is a Department of Defense military and Global Positioning System standard which details a mechanism and waveform for distributing highly accurate timing information.

It is similar to pulse per second (PPS) because it indicates the start of each second using a pulse. PTTI also provides the full Time Of Day (TOD) in hours, minutes, and seconds.

See also

• Clock signal
• Inter-Range Instrumentation Group (IRIG) time codes
• Pulse Per Second (PPS) (1PPS)
• Square wave
• Timecode

References

1. DOD-STD-1399-441; United States Department of Defense.
2. ICD-GPS-060B: GPS User Equipment (Phase III) Interface Control Document for the Pecise Time and Time Interval (PTTI) Interface, Global Positioning System Joint Program Office, 2002

External links

• DOD-STD-1399-441 Interface Standard for Shipboard Systems Section 441 Precise Time and Time Interval (PTTI)

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