Question

我在进行日期比较时遇到问题。

代码：

func inTimeSpan(start, end, check time.Time) bool {
    return check.After(start) && check.Before(end)
}

func checkTime(date string) { //Note that the date passed here is from SQL Server

    formattedDate, err := time.Parse("2006-01-02 15:04:05", date)
    if err != nil {
        log.Print(err)
        return
    }

    now := time.Now()
    later := now.Add(1 * time.Hour)  // 1 hour later than now

    log.Print("Now   : ", now.Format("2006-01-02 15:04:05"))
    log.Print("Given : ", formattedDate.Format("2006-01-02 15:04:05"))
    log.Print("Later : ", later.Format("2006-01-02 15:04:05"))

    if inTimeSpan(now, later, formattedDate) {
        log.Print("Date is in the range.")
    } else if formattedDate.After(later) {
        log.Print("Date is not in the range. Later than 1 hour after now.")
    } else {
        log.Print("Date is not in the range. Before now")
    }

    return
}

预期输出：

2019/12/15 19:31:02 Now   : 2019-12-15 19:31:02
2019/12/15 19:31:02 Given : 2019-12-15 19:45:00
2019/12/15 19:31:02 Later : 2019-12-15 20:31:02
2019/12/15 19:31:02 Date is in the range.

实际输出：

2019/12/15 19:31:02 Now   : 2019-12-15 19:31:02
2019/12/15 19:31:02 Given : 2019-12-15 19:45:00
2019/12/15 19:31:02 Later : 2019-12-15 20:31:02
2019/12/15 19:31:02 Date is not in the range. Later than 1 hour after now.

由于某种原因，日期比较工作正常。有什么我想念的吗？

Answer 1

阿德里安（答案）：

可能想将时区添加到调试打印语句中。我的猜测是那些时间并非全部都在同一TZ。 –阿德里安

SQL Server将时区默认为UTC，其余时间为+0200。我最终对SQL Server进行了一些大的更改，以将所有日期设置为+0200，并将所有新日期设置为正确的时区。

Golang时间比较无法正常工作

1 个答案: