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Get Time in Arbitrary TimeZone
(version: 0)
Date natively supports UTC and local, these are two methods to get date info in a different timezone.
Comparing performance of:
via String Parse vs via Offset Calculation
Created:
3 years ago
by:
Guest
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Script Preparation code:
var a = new Date(1660504672798);
Tests:
via String Parse
parseInt(a.toLocaleTimeString([], {hour: 'numeric', timeZone: 'America/Chicago', hour12: false}), 10);
via Offset Calculation
(new Date(a.getTime() + ((420-300) * 60000))).getHours()
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
via String Parse
via Offset Calculation
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net. **What is tested?** The provided benchmark tests two approaches to get the current time in an arbitrary timezone: 1. **via String Parse**: This approach uses `parseInt` function with locale options to parse a formatted string representing the local time. 2. **via Offset Calculation**: This approach calculates the offset from UTC to a specific timezone and then adds it to the UTC timestamp. **Options compared** The two approaches are compared in terms of execution speed, which is measured in executions per second (EP/s). **Pros and Cons of each approach:** 1. **via String Parse**: * Pros: + Easier to understand and implement. + Utilizes the locale API, which provides a way to format dates according to a specific culture. * Cons: + May be slower due to the string parsing and formatting process. 2. **via Offset Calculation**: * Pros: + Can be more efficient as it avoids unnecessary string operations. * Cons: + Requires knowledge of timezone offsets, which can be complex to handle. **Library used** The `toLocaleTimeString` method uses the Internationalized Locales API (i18n) library to format dates according to a specific culture. The `hour`, `timeZone`, and `hour12` options are part of this library. **Special JS feature or syntax** None mentioned in this benchmark. **Other alternatives** There might be other approaches to get the current time in an arbitrary timezone, such as using native JavaScript methods like `Date.prototype.getTimezoneOffset()` or third-party libraries like Moment.js. However, these alternatives were not tested in this benchmark. In summary, the benchmark tests two approaches to achieve a common goal: getting the current time in an arbitrary timezone. The choice between these approaches depends on factors like performance, readability, and familiarity with locale APIs.
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