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Time.ts
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Time.ts
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/*
* Copyright The OpenTelemetry Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Defines High-Resolution Time.
*
* The first number, HrTime[0], is UNIX Epoch time in seconds since 00:00:00 UTC on 1 January 1970.
* The second number, HrTime[1], represents the partial second elapsed since Unix Epoch time represented by first number in nanoseconds.
* For example, 2021-01-01T12:30:10.150Z in UNIX Epoch time in milliseconds is represented as 1609504210150.
* The first number is calculated by converting and truncating the Epoch time in milliseconds to seconds:
* HrTime[0] = Math.trunc(1609504210150 / 1000) = 1609504210.
* The second number is calculated by converting the digits after the decimal point of the subtraction, (1609504210150 / 1000) - HrTime[0], to nanoseconds:
* HrTime[1] = Number((1609504210.150 - HrTime[0]).toFixed(9)) * 1e9 = 150000000.
* This is represented in HrTime format as [1609504210, 150000000].
*/
export type HrTime = [number, number];
/**
* Defines TimeInput.
*
* hrtime, epoch milliseconds, performance.now() or Date
*/
export type TimeInput = HrTime | number | Date;