"},"introdate":{"wt":"{{Start date and age|1985}} <!--{{Start date|YYYY|MM|DD}}-->"},"industry":{"wt":"<!--industries used (such as PC/Chemical/Multimedia)-->"},"connector":{"wt":"<!--connector(s) usable with protocol-->"},"hardware":{"wt":"<!--examples of compatible hardware-->"},"range":{"wt":"<!--{{convert|X|mi|abbr=on}}-->"},"newer":{"wt":"<!--superseded by which protocol-->"},"website":{"wt":"<!--URL to specs; OD wrap in template -->"}},"i":0}}]}'>
 | |
| International standard | RFC 5905 |
|---|---|
| Developed by | David L. Mills, Harlan Stenn, Network Time Foundation |
| Introduced | 1985;41 years ago (1985) |
| Internet protocol suite | |
|---|---|
| Application layer | |
| Transport layer | |
| Internet layer | |
| Link layer | |
θ
=
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t
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+
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2
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t
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)
2
,
{\displaystyle \theta ={\frac {(t_{1}-t_{0})+(t_{2}-t_{3})}{2}},}
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