Definition availableExact definition Candidate definition
Microsecond
µscx:us · Time interval
1 µs = 0.000001 s.
- Quantity kind
- Time interval
- SI dimension
T- Allowed roles
- Scalar
- Unit system / convention
- SI decimal multiples
- Registry code
us
Scope and distinctions
Elapsed duration only. A calendar day across time-zone or daylight-saving transitions is a different operation.
Available operations
No converter is linked for this definition yet. You can inspect the definition and its sources.
Verification scope
New UUCE conversion paths have not been CVP-verified or production-attested. An exact unit definition is not a verification claim.
Candidate is a registry lifecycle state. It is not a completed review or CVP verification.
Definition sources
- BIPM — The International System of Units (SI)
9th edition, version 4.01, June 2026
Table 7 prefixes; Table 8: day = 24 h = 86400 s
Source checked:Definition metadata attributed to BIPM; brochure licensed CC BY 4.0.
Definition and registry versions
- Definition revision
- 1.0.1
- Registry snapshot
- 0.3.0-preview.3 · preview
- Definition lifecycle
- candidate
- Definition owner
- core.metrology
- Definition digest
42d15c58ef2bdaf12b1b85e2cfba04c1aba36907e6e582ae054afe0f5bf57605- Definition dependency digest
82fdd5cbb404b06e98796afa3e8193a3f896f8d3738205a75e062f80cace1f3f
Digests identify definition content; they are not CVP evidence or production attestations.