JSTests/microbenchmarks/local-date-constructor.js

function test() {
    a = {
        2016: {
            begin: new Date("2016-03-13T00:00:00").getTime(),
            end: new Date("2016-11-06T00:00:00").getTime()
        },
        2017: {
            begin: new Date("2017-03-12T00:00:00").getTime(),
            end: new Date("2017-11-05T00:00:00").getTime()
        },
        2018: {
            begin: new Date("2018-03-11T00:00:00").getTime(),
            end: new Date("2018-11-04T00:00:00").getTime()
        },
        2019: {
            begin: new Date("2019-03-10T00:00:00").getTime(),
            end: new Date("2019-11-03T00:00:00").getTime()
        },
        2020: {
            begin: new Date("2020-03-08T00:00:00").getTime(),
            end: new Date("2020-11-01T00:00:00").getTime()
        },
        2021: {
            begin: new Date("2021-03-14T00:00:00").getTime(),
            end: new Date("2021-11-07T00:00:00").getTime()
        },
        2022: {
            begin: new Date("2022-03-13T00:00:00").getTime(),
            end: new Date("2022-11-06T00:00:00").getTime()
        },
        2023: {
            begin: new Date("2023-03-12T00:00:00").getTime(),
            end: new Date("2023-11-05T00:00:00").getTime()
        },
        2024: {
            begin: new Date("2024-03-10T00:00:00").getTime(),
            end: new Date("2024-11-03T00:00:00").getTime()
        },
        2025: {
            begin: new Date("2025-03-09T00:00:00").getTime(),
            end: new Date("2025-11-02T00:00:00").getTime()
        }
    }
    return a;
}
noInline(test);

let count = 10000;
for (var i = 0; i < count; i++)
    test();