date - golang 中过去日期时间和当前时间之间的差异(以分钟为单位)

Question

我有当前时间和过去时间，我试图在分钟内找出差异。

这是我正在尝试的代码，尽管我是新手。

package main

import (
    "fmt"
    "time"
)

func main() {
    //fetching current time
    currentTime := time.Now().Format("2006-01-02 15:04:05")
    //past time comes in as string
    pasttimestr := "2018-10-10 23:00"
    layout := "2006-01-02 15:04:05"
    //converting string to date
    pasttime, err := time.Parse(layout, pasttimestr)
        if err != nil {
        fmt.Println(err)
    }
    //differnce between pastdate and current date
    diff := currentTime.Sub(pasttime)
    fmt.Println("difference time in min : ", diff)
}

错误:

# command-line-arguments
.\dates.go:21:21: currentTime.Sub undefined (type string has no field or method Sub)

提前致谢:)

Answer 1

您可能应该从当前时间删除格式函数调用以获取实际时间结构而不是字符串表示，并修复过去时间的布局

package main

import (
    "fmt"
    "time"
)

func main() {
    //fetching current time
    currentTime := time.Now()
    loc := currentTime.Location()
    //past time comes in as string
    pasttimestr := "2018-10-10 23:00"
    layout := "2006-01-02 15:04"
    //converting string to date
    pasttime, err := time.ParseInLocation(layout, pasttimestr, loc)
    if err != nil {
        fmt.Println(err)
    }
    fmt.Println("Past Time: ", pasttime)
    fmt.Println("Current Time: ", currentTime)
    //differnce between pastdate and current date
    diff := currentTime.Sub(pasttime)
    fmt.Printf("time difference is %v or %v in minutes\n", diff, diff.Minutes())
}

给我

Past Time:  2018-10-10 23:00:00 -0400 EDT
Current Time:  2018-10-10 14:31:34.865259 -0400 EDT m=+0.000351797
time difference is -8h28m25.134741s or -508.41891235 in minutes