20 lines
882 B
JavaScript
20 lines
882 B
JavaScript
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// Copyright 2023 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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let beforeOct1582GregorianTransition = new Date('1582-01-01T00:00Z');
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let afterOct1582GregorianTransition = new Date('1583-01-01T00:00Z');
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// Gregorian (proleptic) calendar
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assertEquals(
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beforeOct1582GregorianTransition.toLocaleDateString('en-US', { timeZone: 'UTC', calendar: 'gregory' }),
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"1/1/1582");
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// ISO 8601 calendar output before Oct 1582 Gregorian transition
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assertEquals(
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beforeOct1582GregorianTransition.toLocaleDateString('en-US', { timeZone: 'UTC', calendar: 'iso8601' }),
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"1/1/1582");
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// ISO 8601 calendar output after the Gregorian transition
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assertEquals(
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afterOct1582GregorianTransition.toLocaleDateString('en-US', { timeZone: 'UTC', calendar: 'iso8601' }),
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"1/1/1583");
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