Definition

1. Noun:
   • A definite length of time marked off by two instants: A "time interval" is a specific, measurable duration between two distinct points in time. It represents the amount of time that passes from a starting instant to an ending instant.

Usage

• The term "time interval" is used to quantify and discuss durations in scientific, mathematical, technical, and general contexts. It focuses on the span of time itself, not on the events that occur within it.
• It is often modified by adjectives describing its length (e.g., short, long, specific, fixed) or its purpose (e.g., sampling interval, time interval between events).

Examples

• Noun:
  • The experiment measured the time interval between the flash of light and the sound.
  • There is a regular time interval of 15 minutes between bus arrivals.
  • Please record your observations at fixed time intervals.

Advanced Usage

• "At time intervals": Occurring repeatedly after a specific duration.
  • The medication must be taken at regular time intervals.
• "Within a time interval": Happening sometime during a specified duration.
  • The task must be completed within the given time interval.

Variants and Related Words

• Interval (n): Often used synonymously with "time interval," especially in general contexts. (e.g., )
• Duration (n): The length of time that something continues. (e.g., )
• Period (n): A length or portion of time. (e.g., )
• Timespan (n): The length of time over which something lasts or extends.

Synonyms

• Span: A period between two points in time.
• Stretch: A continuous period of time.
• Spell: A short, indefinite period of time.

Related Phrases

• Elapsed time: The actual time taken for a process to complete, equivalent to a measured time interval.
• Lag time: The time interval between one event and a related later event, often a delay.

Notes

• In physics and mathematics, a "time interval" is a fundamental concept for measuring change and is often denoted as Δt (delta t).
• The concept is neutral; it does not imply whether the interval is perceived as short or long, which is subjective.

Noun

1. a definite length of time marked off by two instants