How to Get the Local Start of the Day in Go: Is Truncate the Right Tool?

Get Local Start of Today

The goal is to obtain a local beginning of day time object, ensuring the correct time zone is included.

Utilizing a Custom Function

The initial solution proposed in the code snippet reconstructs the date from its year, month, and day components. However, a more efficient approach is to harness the Date function provided by the time package.

func Bod(t time.Time) time.Time {
    return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location())
}

Flaws of the Truncate Method

While the accepted answer suggests using the Truncate function, it fails to fulfill our requirement. This function operates on UTC time and erroneously assumes a fixed 24-hour day, overlooking potential deviations observed in Chicago.

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