// Copyright (C) 2021 Igalia, S.L. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-temporal.plaindatetime.from description: Negative time fields are balanced upwards if the argument is given as ZonedDateTime info: | sec-temporal-balancetime steps 3–14: 3. Set _microsecond_ to _microsecond_ + floor(_nanosecond_ / 1000). 4. Set _nanosecond_ to _nanosecond_ modulo 1000. 5. Set _millisecond_ to _millisecond_ + floor(_microsecond_ / 1000). 6. Set _microsecond_ to _microsecond_ modulo 1000. 7. Set _second_ to _second_ + floor(_millisecond_ / 1000). 8. Set _millisecond_ to _millisecond_ modulo 1000. 9. Set _minute_ to _minute_ + floor(_second_ / 60). 10. Set _second_ to _second_ modulo 60. 11. Set _hour_ to _hour_ + floor(_minute_ / 60). 12. Set _minute_ to _minute_ modulo 60. 13. Let _days_ be floor(_hour_ / 24). 14. Set _hour_ to _hour_ modulo 24. sec-temporal-balanceisodatetime step 1: 1. Let _balancedTime_ be ? BalanceTime(_hour_, _minute_, _second_, _millisecond_, _microsecond_, _nanosecond_). sec-temporal-builtintimezonegetplaindatetimefor step 3: 3. Set _result_ to ? BalanceISODateTime(_result_.[[Year]], _result_.[[Month]], _result_.[[Day]], _result_.[[Hour]], _result_.[[Minute]], _result_.[[Second]], _result_.[[Millisecond]], _result_.[[Microsecond]], _result_.[[Nanosecond]] + _offsetNanoseconds_). sec-temporal-totemporaldatetime step 3.b: b. If _item_ has an [[InitializedTemporalZonedDateTime]] internal slot, then ... ii. 1. Return ? BuiltinTimeZoneGetPlainDateTimeFor(_item_.[[TimeZone]], _instant_, _item_.[[Calendar]]). sec-temporal.plaindatetime.from step 3: 3. Return ? ToTemporalDateTime(_temporalTime_). includes: [temporalHelpers.js] features: [Temporal] ---*/ // This code path is encountered if the time zone offset is negative and its // absolute value in nanoseconds is greater than the nanosecond field of the // exact time's epoch parts const tz = new Temporal.TimeZone("-00:00:00.000000002"); const datetime = new Temporal.ZonedDateTime(3661_001_001_001n, tz); const pdt = Temporal.PlainDateTime.from(datetime); TemporalHelpers.assertPlainDateTime(pdt, 1970, 1, "M01", 1, 1, 1, 1, 1, 0, 999);