sinon

JavaScript test spies, stubs and mocks.

v21.0.0 URL: https://unpkg.com/sinon@21.0.0/lib/sinon.js

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sinon test testing unit stub spy fake time clock mock xhr assert

d3-time

A calculator for humanity’s peculiar conventions of time.

v3.1.0 URL: https://unpkg.com/d3-time@3.1.0/dist/d3-time.min.js

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d3 d3-module time interval calendar

moment-timezone

Parse and display moments in any timezone.

v0.6.0 URL: https://unpkg.com/moment-timezone@0.6.0/index.js

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moment date time timezone olson iana zone tz

relative-time-format

A convenient Intl.RelativeTimeFormat polyfill

v1.1.11 URL: https://unpkg.com/relative-time-format@1.1.11/index.cjs

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relative time format intl RelativeTimeFormat

date-fns-tz

Time zone support for date-fns v3 with the Intl API

v3.2.0 URL: https://unpkg.com/date-fns-tz@3.2.0/dist/cjs/index.js

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date-fns timezone time zone date time parse format immutable