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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.cite-ref-1[1]cite-ref-2[2]

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

• References

• External links

• Clock signal

• Inter-Range Instrumentation Group (IRIG) time codes

• Pulse Per Second (PPS) (1PPS)

• Square wave

• Timecode

cite-note-11. ↑ DOD-STD-1399-441; United States Department of Defense.

cite-note-22. ↑ [1]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

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