Go () ns1，ns2:=从.Nanosecond（）到.Nanosecond（） 年份=y2-y1 月份=整数（M2-M1） 天数=d2-d1 小时数=h2-h1 分钟=m2-m1 秒=s2-s1 纳秒=ns2-ns1 如果纳秒

您需要多精确？不精确的相对时间戳会使这有点简单。我更希望它精确到second@T0xicCode能给我一个不太精确的答案吗？也许我可以改进一下，但我不知道为什么，但2015-06-27T09:34:22+00:00时间返回1年零10个月，这是不正确的。@danielps1我的数学被关闭了，现在更新帖子。我对此投了赞成票，因为尽管这与golang无关，但它在sql中是一种解释得很好的方法。泰，先生。

2015-06-27T09:34:22+00:00

6915h7m47.6901559s

for hours > 24 {
        days++
        hours -= 24
}

func main() {
    a := time.Date(2015, 10, 15, 0, 0, 0, 0, time.UTC)
    b := time.Date(2016, 11, 15, 0, 0, 0, 0, time.UTC)
    fmt.Println(monthYearDiff(a, b))
}

func monthYearDiff(a, b time.Time) (years, months int) {
    m := a.Month()
    for a.Before(b) {
        a = a.Add(time.Hour * 24)
        m2 := a.Month()
        if m2 != m {
            months++
        }
        m = m2
    }
    years = months / 12
    months = months % 12
    return
}

// Max days in year y1, month M1
t := time.Date(y1, M1, 32, 0, 0, 0, 0, time.UTC)
daysInMonth := 32 - t.Day()

if a.Location() != b.Location() {
    b = b.In(a.Location())
}

func diff(a, b time.Time) (year, month, day, hour, min, sec int) {
    if a.Location() != b.Location() {
        b = b.In(a.Location())
    }
    if a.After(b) {
        a, b = b, a
    }
    y1, M1, d1 := a.Date()
    y2, M2, d2 := b.Date()

    h1, m1, s1 := a.Clock()
    h2, m2, s2 := b.Clock()

    year = int(y2 - y1)
    month = int(M2 - M1)
    day = int(d2 - d1)
    hour = int(h2 - h1)
    min = int(m2 - m1)
    sec = int(s2 - s1)

    // Normalize negative values
    if sec < 0 {
        sec += 60
        min--
    }
    if min < 0 {
        min += 60
        hour--
    }
    if hour < 0 {
        hour += 24
        day--
    }
    if day < 0 {
        // days in month:
        t := time.Date(y1, M1, 32, 0, 0, 0, 0, time.UTC)
        day += 32 - t.Day()
        month--
    }
    if month < 0 {
        month += 12
        year--
    }

    return
}

var a, b time.Time
a = time.Date(2015, 5, 1, 0, 0, 0, 0, time.UTC)
b = time.Date(2016, 6, 2, 1, 1, 1, 1, time.UTC)
fmt.Println(diff(a, b)) // Expected: 1 1 1 1 1 1

a = time.Date(2016, 1, 2, 0, 0, 0, 0, time.UTC)
b = time.Date(2016, 2, 1, 0, 0, 0, 0, time.UTC)
fmt.Println(diff(a, b)) // Expected: 0 0 30 0 0 0

a = time.Date(2016, 2, 2, 0, 0, 0, 0, time.UTC)
b = time.Date(2016, 3, 1, 0, 0, 0, 0, time.UTC)
fmt.Println(diff(a, b)) // Expected: 0 0 28 0 0 0

a = time.Date(2015, 2, 11, 0, 0, 0, 0, time.UTC)
b = time.Date(2016, 1, 12, 0, 0, 0, 0, time.UTC)
fmt.Println(diff(a, b)) // Expected: 0 11 1 0 0 0

1 1 1 1 1 1
0 0 30 0 0 0
0 0 28 0 0 0
0 11 1 0 0 0

// Your birthday: let's say it's January 2nd, 1980, 3:30 AM
birthday := time.Date(1980, 1, 2, 3, 30, 0, 0, time.UTC)
year, month, day, hour, min, sec := diff(birthday, time.Now())

fmt.Printf("You are %d years, %d months, %d days, %d hours, %d mins and %d seconds old.",
    year, month, day, hour, min, sec)

You are 36 years, 3 months, 8 days, 11 hours, 57 mins and 41 seconds old.

goAnnounced := time.Date(2009, 11, 10, 23, 0, 0, 0, time.UTC)
year, month, day, hour, min, sec := diff(goAnnounced, time.Now())
fmt.Printf("Go was announced "+
    "%d years, %d months, %d days, %d hours, %d mins and %d seconds ago.",
    year, month, day, hour, min, sec)

Go was announced 6 years, 4 months, 29 days, 16 hours, 53 mins and 31 seconds ago.

duration := time.Since(...)
p, _ := period.NewOf(duration)
str := p.String()

p := period.Between(t1, t2)
str := p.String()

SELECT age('2016-03-31', '2016-06-30'); -- result is: -2 mons -30 days

SELECT age(timestamp '2016-06-30'); -- result is: -14 days

SELECT date_part('month', age('2016-03-31', '2016-06-30')); --result is: -2
SELECT date_part('day',   age('2016-03-31', '2016-06-30')); --result is: -30

SELECT  
    date_part('year', diff) as year
  , date_part('month', diff) as month
  , date_part('day', diff) as day
FROM (
  SELECT age(timestamp '2016-06-30') AS diff
) as qdiff;

-- result is: 
-- year month day
-- 0    0     -14

WITH qdiff AS (
  SELECT age(timestamp '2016-06-30') AS diff
)
SELECT  
    date_part('year', diff) as year
  , date_part('month', diff) as month
  , date_part('day', diff) as day
FROM qdiff

-- result is: 
-- year month day
-- 0    0     -14

a = time.Date(2015, 1, 11, 0, 0, 0, 0, time.UTC)
b = time.Date(2015, 3, 10, 0, 0, 0, 0, time.UTC)
fmt.Println(diff(a, b))
// Expected: 0 1 27 0 0 0
// Actual output: 0 1 30 0 0 0

package main

import (
    "fmt"
    "time"
)


func DaysIn(year int, month time.Month) int {
    return time.Date(year, month+1, 0, 0, 0, 0, 0, time.UTC).Day()
}

func Elapsed(from, to time.Time) (inverted bool, years, months, days, hours, minutes, seconds, nanoseconds int) {
    if from.Location() != to.Location() {
        to = to.In(to.Location())
    }

    inverted = false
    if from.After(to) {
        inverted = true
        from, to = to, from
    }

    y1, M1, d1 := from.Date()
    y2, M2, d2 := to.Date()

    h1, m1, s1 := from.Clock()
    h2, m2, s2 := to.Clock()

    ns1, ns2 := from.Nanosecond(), to.Nanosecond()

    years = y2 - y1
    months = int(M2 - M1)
    days = d2 - d1

    hours = h2 - h1
    minutes = m2 - m1
    seconds = s2 - s1
    nanoseconds = ns2 - ns1

    if nanoseconds < 0 {
        nanoseconds += 1e9
        seconds--
    }
    if seconds < 0 {
        seconds += 60
        minutes--
    }
    if minutes < 0 {
        minutes += 60
        hours--
    }
    if hours < 0 {
        hours += 24
        days--
    }
    if days < 0 {
        days += DaysIn(y2, M2-1)
        months--
    }
    if months < 0 {
        months += 12
        years--
    }
    return
}

func main() {
    var a, b time.Time
    a = time.Date(2015, 5, 1, 0, 0, 0, 0, time.UTC)
    b = time.Date(2016, 6, 2, 1, 1, 1, 1, time.UTC)
    fmt.Println(Elapsed(a, b)) // Expected: false 1 1 1 1 1 1

    a = time.Date(2016, 1, 2, 0, 0, 0, 0, time.UTC)
    b = time.Date(2016, 2, 1, 0, 0, 0, 0, time.UTC)
    fmt.Println(Elapsed(a, b)) // Expected: false 0 0 30 0 0 0

    a = time.Date(2016, 2, 2, 0, 0, 0, 0, time.UTC)
    b = time.Date(2016, 3, 1, 0, 0, 0, 0, time.UTC)
    fmt.Println(Elapsed(a, b)) // Expected: false 0 0 28 0 0 0

    a = time.Date(2015, 2, 11, 0, 0, 0, 0, time.UTC)
    b = time.Date(2016, 1, 12, 0, 0, 0, 0, time.UTC)
    fmt.Println(Elapsed(a, b)) // Expected: false 0 11 1 0 0 0

    a = time.Date(2015, 1, 11, 0, 0, 0, 0, time.UTC)
    b = time.Date(2015, 3, 10, 0, 0, 0, 0, time.UTC)
    fmt.Println(Elapsed(a, b)) // Expected: false 0 1 27 0 0 0
}