1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/day/date-time.js b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/day/date-time.js
new file mode 100644
index 0000000000..d664a65afa
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/day/date-time.js
@@ -0,0 +1,19 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.calendar.prototype.day
+description: >
+  Temporal.Calendar.prototype.day will take PlainDateTime and return
+  the value of the day.
+info: |
+  5. Return ! ISODay(temporalDateLike).
+features: [Temporal]
+---*/
+let cal = new Temporal.Calendar("iso8601");
+
+let dateTime = new Temporal.PlainDateTime(1997, 8, 23, 5, 30, 13)
+assert.sameValue(cal.day(dateTime), 23, 'cal.day(new Temporal.PlainDateTime(1997, 8, 23, 5, 30, 13)) must return 23');
+
+reportCompare(0, 0);