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Time

Just how long is 100 microseconds?

A duration of 100 microseconds is 1 × 10⁻⁴ seconds.

In a blink

100 µs

Scale

ELAPSED TIME

100 microseconds

Time conversions use a Julian year of exactly 365.25 days.

100 µsTime
0
Camera flash

A camera flash is a brief, intense burst of light used to illuminate a scene for photography.

1 msTime
0
Both timelines start together. Length measures elapsed time, not a physical distance.

A little perspective

The duration of a camera flash is about 10 times 100 microseconds.

Measurements, assumptions & sources +

100 microseconds

Time: 100 µs; definition.

Time conversions use a Julian year of exactly 365.25 days.

NIST — SI conversion factors

Camera flash

Time: 1 ms; reference interval.

A chosen 1 ms flash duration; equipment varies.

Defined examples — our methodology

The marked time is calibrated. Unmeasured illustration details are representative.

Measurement details

Why these numbers?

Compare 100 microseconds with the duration of a camera flash. The notes below explain how each value was chosen.

100 microseconds

100 µs

Time · definition

Time conversions use a Julian year of exactly 365.25 days.

Camera flash

1 ms

Time · reference interval

A chosen 1 ms flash duration; equipment varies.

Comparing
Time ↔ Time
Relative size
The duration of a camera flash is about 10 times 100 microseconds. The duration of a camera flash is approximately 900% greater than 100 microseconds.

How to read the visual

The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.

  • The duration of a camera flash: The measurement is labelled reference interval. Check the source notes for its basis.

A duration is an interval, not a calendar date.

1 × 10⁻⁴ sseconds
2.7778 × 10⁻⁸ hhours
1.1574 × 10⁻⁹ daysdays
3.1688 × 10⁻¹² yearsyears

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