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datemilliseconddifference.md

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datemilliseconddifference

Calculates the difference between two dates in milliseconds.

Syntax

datemilliseconddifference(startDate, endDate)

Parameters

Parameter Type Description
startDate String Start date (ISO 8601 format)
endDate String End date (ISO 8601 format)

Returns

String - The number of milliseconds between the two dates.

Description

The datemilliseconddifference function calculates how many milliseconds have elapsed between two dates. The result is positive when endDate is after startDate, and negative otherwise.

Examples

Basic Usage

Result = DATEMILLISECONDDIFFERENCE("2025-04-01T10:00:00.000Z", "2025-04-01T10:00:00.500Z")
// Result: "500"

Performance Measurement

ExecutionTime = DATEMILLISECONDDIFFERENCE(StartTime, EndTime)

Precise Timing

LatencyMs = DATEMILLISECONDDIFFERENCE(RequestTime, ResponseTime)

Use Cases

  • Performance profiling: Precise execution times
  • Latency measurement: Network latency
  • Animation timing: Frame durations
  • Benchmarking: Comparing execution speeds

Related Functions

Notes

  • Uses ISO 8601 date format
  • Result can be negative
  • Highest precision time difference
  • Uses the Dates service internally