Golang Time.Second方法代碼示例

func format(str, dbname string, tm time.Time) string {
	buf := bytes.Buffer{}

	var s scanner.Scanner
	s.Init(strings.NewReader(str))
	s.Mode = 0
	s.Whitespace = 0
	for tok := s.Scan(); tok != scanner.EOF; tok = s.Scan() {
		if tok != '%' {
			buf.WriteRune(tok)
			continue
		}

		switch s := s.Scan(); s {
		case '%':
			buf.WriteRune('%')
		case 'n':
			buf.WriteString(dbname)
		case 'Y', 'y':
			buf.WriteString(strconv.Itoa(tm.Year()))
		case 'm':
			buf.WriteString(strconv.Itoa(int(tm.Month())))
		case 'd':
			buf.WriteString(strconv.Itoa(tm.Day()))
		case 'H':
			buf.WriteString(twodig(strconv.Itoa(tm.Hour())))
		case 'M':
			buf.WriteString(twodig(strconv.Itoa(tm.Minute())))
		case 'S':
			buf.WriteString(twodig(strconv.Itoa(tm.Second())))
		}
	}

	return buf.String()
}

// FmtTimeMedium returns the medium time representation of 't' for 'ar_SA'
func (ar *ar_SA) FmtTimeMedium(t time.Time) string {

	b := make([]byte, 0, 32)

	h := t.Hour()

	if h > 12 {
		h -= 12
	}

	b = strconv.AppendInt(b, int64(h), 10)
	b = append(b, ar.timeSeparator...)

	if t.Minute() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Minute()), 10)
	b = append(b, ar.timeSeparator...)

	if t.Second() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Second()), 10)
	b = append(b, []byte{0x20}...)

	if t.Hour() < 12 {
		b = append(b, ar.periodsAbbreviated[0]...)
	} else {
		b = append(b, ar.periodsAbbreviated[1]...)
	}

	return string(b)
}

// FmtTimeLong returns the long time representation of 't' for 'en_SC'
func (en *en_SC) FmtTimeLong(t time.Time) string {

	b := make([]byte, 0, 32)

	if t.Hour() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
	b = append(b, en.timeSeparator...)

	if t.Minute() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Minute()), 10)
	b = append(b, en.timeSeparator...)

	if t.Second() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Second()), 10)
	b = append(b, []byte{0x20}...)

	tz, _ := t.Zone()
	b = append(b, tz...)

	return string(b)
}

// FmtTimeLong returns the long time representation of 't' for 'sr_Cyrl_RS'
func (sr *sr_Cyrl_RS) FmtTimeLong(t time.Time) string {

	b := make([]byte, 0, 32)

	if t.Hour() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
	b = append(b, []byte{0x2e}...)

	if t.Minute() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Minute()), 10)
	b = append(b, []byte{0x2e}...)

	if t.Second() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Second()), 10)
	b = append(b, []byte{0x20}...)

	tz, _ := t.Zone()
	b = append(b, tz...)

	return string(b)
}

// FmtTimeFull returns the full time representation of 't' for 'eo'
func (eo *eo) FmtTimeFull(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
	b = append(b, []byte{0x2d, 0x61}...)
	b = append(b, []byte{0x20, 0x68, 0x6f, 0x72, 0x6f}...)
	b = append(b, []byte{0x20, 0x6b, 0x61, 0x6a}...)
	b = append(b, []byte{0x20}...)
	b = strconv.AppendInt(b, int64(t.Minute()), 10)
	b = append(b, eo.timeSeparator...)

	if t.Second() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Second()), 10)
	b = append(b, []byte{0x20}...)

	tz, _ := t.Zone()

	if btz, ok := eo.timezones[tz]; ok {
		b = append(b, btz...)
	} else {
		b = append(b, tz...)
	}

	return string(b)
}

// dateSize returns the size needed to store a given time.Time.
func dateSize(v time.Time) (length uint8) {
	var (
		month, day, hour, min, sec uint8
		year                       uint16
		msec                       uint32
	)

	year = uint16(v.Year())
	month = uint8(v.Month())
	day = uint8(v.Day())
	hour = uint8(v.Hour())
	min = uint8(v.Minute())
	sec = uint8(v.Second())
	msec = uint32(v.Nanosecond() / 1000)

	if hour == 0 && min == 0 && sec == 0 && msec == 0 {
		if year == 0 && month == 0 && day == 0 {
			return 0
		} else {
			length = 4
		}
	} else if msec == 0 {
		length = 7
	} else {
		length = 11
	}
	length++ // 1 extra byte needed to store the length itself
	return
}

// FmtTimeFull returns the full time representation of 't' for 'uz_Arab_AF'
func (uz *uz_Arab_AF) FmtTimeFull(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
	b = append(b, uz.timeSeparator...)

	if t.Minute() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Minute()), 10)
	b = append(b, uz.timeSeparator...)

	if t.Second() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Second()), 10)
	b = append(b, []byte{0x20, 0x28}...)

	tz, _ := t.Zone()

	if btz, ok := uz.timezones[tz]; ok {
		b = append(b, btz...)
	} else {
		b = append(b, tz...)
	}

	b = append(b, []byte{0x29}...)

	return string(b)
}

func (de *DateEdit) timeToSystemTime(t time.Time) *win.SYSTEMTIME {
	if t.Year() < 1601 {
		if de.hasStyleBits(win.DTS_SHOWNONE) {
			return nil
		} else {
			return &win.SYSTEMTIME{
				WYear:  uint16(1601),
				WMonth: uint16(1),
				WDay:   uint16(1),
			}
		}
	}

	st := &win.SYSTEMTIME{
		WYear:  uint16(t.Year()),
		WMonth: uint16(t.Month()),
		WDay:   uint16(t.Day()),
	}

	if de.timeOfDayDisplayed() {
		st.WHour = uint16(t.Hour())
		st.WMinute = uint16(t.Minute())
		st.WSecond = uint16(t.Second())
	}

	return st
}

// FmtTimeFull returns the full time representation of 't' for 'th_TH'
func (th *th_TH) FmtTimeFull(t time.Time) string {

	b := make([]byte, 0, 32)

	b = strconv.AppendInt(b, int64(t.Hour()), 10)
	b = append(b, []byte{0x20, 0xe0, 0xb8, 0x99, 0xe0, 0xb8, 0xb2, 0xe0, 0xb8, 0xac, 0xe0, 0xb8, 0xb4, 0xe0, 0xb8, 0x81, 0xe0, 0xb8, 0xb2, 0x20}...)

	if t.Minute() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Minute()), 10)
	b = append(b, []byte{0x20, 0xe0, 0xb8, 0x99, 0xe0, 0xb8, 0xb2, 0xe0, 0xb8, 0x97, 0xe0, 0xb8, 0xb5, 0x20}...)

	if t.Second() < 10 {
		b = append(b, '0')
	}

	b = strconv.AppendInt(b, int64(t.Second()), 10)
	b = append(b, []byte{0x20, 0xe0, 0xb8, 0xa7, 0xe0, 0xb8, 0xb4, 0xe0, 0xb8, 0x99, 0xe0, 0xb8, 0xb2, 0xe0, 0xb8, 0x97, 0xe0, 0xb8, 0xb5, 0x20}...)

	tz, _ := t.Zone()

	if btz, ok := th.timezones[tz]; ok {
		b = append(b, btz...)
	} else {
		b = append(b, tz...)
	}

	return string(b)
}

func (c *Channel) ShouldSendNowGivenTime(currentTime time.Time) bool {
	// We assume these are already sent
	if c.TimeToNotify == "@immediately" {
		return false
	}

	// the additional -1s is to make sure that the range always had 1 second.
	// example: if you specify 01:00:00, the minute before and minute after will
	// be 01:00:00 and 01:01:00. The next time computed will be an hour from now
	// (in the hourly case). This means that there's a chance that this hour we
	// never send anything. With an additional second it minimize this risk.
	//
	// Also, double sending is minimized as only 1 goroutine sends and we use a
	// delivered flag in the db.
	minuteBefore := currentTime.Add(time.Duration(-currentTime.Second()-1) * time.Second)
	minuteAfter := minuteBefore.Add(time.Minute + time.Second)
	expression := cronexpr.MustParse(c.TimeToNotify)
	nextTime := expression.Next(minuteBefore)
	if nextTime.IsZero() {
		return false
	}

	// Operator overloading is so good.
	// return (minuteBefore <= nextTime <= currentTime)
	return (nextTime.After(minuteBefore) || nextTime.Equal(minuteBefore)) && (nextTime.Before(minuteAfter) || nextTime.Equal(minuteAfter))
}

//時間取整
func TruncDate(cyc string, now time.Time) time.Time { // {{{

	//解析周期並取得距下一周期的時間
	switch {
	case cyc == "ss":
		//按秒取整
		return time.Date(now.Year(), now.Month(), now.Day(), now.Hour(), now.Minute(), now.Second(), 0, time.Local)
	case cyc == "mi":
		//按分鍾取整
		return time.Date(now.Year(), now.Month(), now.Day(), now.Hour(), now.Minute(), 0, 0, time.Local)

	case cyc == "h":
		//按小時取整
		return time.Date(now.Year(), now.Month(), now.Day(), now.Hour(), 0, 0, 0, time.Local)
	case cyc == "d":
		//按日取整
		return time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, time.Local)
	case cyc == "m":
		//按月取整
		return time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, time.Local)
	case cyc == "w":
		//按周取整
		return time.Date(now.Year(), now.Month(), now.Day()-int(now.Weekday()), 0, 0, 0, 0, time.Local)
	case cyc == "q":
		//回頭再處理
	case cyc == "y":
		//按年取整
		return time.Date(now.Year(), 1, 1, 0, 0, 0, 0, time.Local)
	}
	return time.Now()

} // }}}

// EndOf returns the end of the passed unit for the given time.
func EndOf(t time.Time, unit UnitOfTime) time.Time {
	// Retrieve the individual parts of the given time.
	year := t.Year()
	month := t.Month()
	day := t.Day()
	hour := t.Hour()
	minute := t.Minute()
	second := t.Second()
	loc := t.Location()
	// Build new time.
	switch unit {
	case Second:
		return time.Date(year, month, day, hour, minute, second, 999999999, loc)
	case Minute:
		return time.Date(year, month, day, hour, minute, 59, 999999999, loc)
	case Hour:
		return time.Date(year, month, day, hour, 59, 59, 999999999, loc)
	case Day:
		return time.Date(year, month, day, 23, 59, 59, 999999999, loc)
	case Month:
		// Catching leap years makes the month a bit more complex.
		_, nextMonth, _ := t.AddDate(0, 1, 0).Date()
		return time.Date(year, nextMonth, 1, 23, 59, 59, 999999999, loc).AddDate(0, 0, -1)
	case Year:
		return time.Date(year, time.December, 31, 23, 59, 59, 999999999, loc)
	default:
		return t
	}
}

// BeginOf returns the begin of the passed unit for the given time.
func BeginOf(t time.Time, unit UnitOfTime) time.Time {
	// Retrieve the individual parts of the given time.
	year := t.Year()
	month := t.Month()
	day := t.Day()
	hour := t.Hour()
	minute := t.Minute()
	second := t.Second()
	loc := t.Location()
	// Build new time.
	switch unit {
	case Second:
		return time.Date(year, month, day, hour, minute, second, 0, loc)
	case Minute:
		return time.Date(year, month, day, hour, minute, 0, 0, loc)
	case Hour:
		return time.Date(year, month, day, hour, 0, 0, 0, loc)
	case Day:
		return time.Date(year, month, day, 0, 0, 0, 0, loc)
	case Month:
		return time.Date(year, month, 1, 0, 0, 0, 0, loc)
	case Year:
		return time.Date(year, time.January, 1, 0, 0, 0, 0, loc)
	default:
		return t
	}
}

func (s *simClock) drawNeedle(t time.Time) {
	s.Save()
	defer s.Restore()
	needle := func(angle float64, lineWidth float64, ratio float64, color string) {
		s.BeginPath()
		s.StrokeStyle = color
		s.LineWidth = lineWidth
		r := s.r * ratio
		angle = angle - math.Pi/2
		x := r * math.Cos(angle)
		y := r * math.Sin(angle)
		s.MoveTo(0, 0)
		s.LineTo(x, y)
		s.Stroke()
	}
	// houre
	angleHour := float64(t.Hour()) / 6.0 * math.Pi
	needle(angleHour, 5.0, s.hourNeedleRatio, "black")
	// minute
	angleMinute := float64(t.Minute()) / 30.0 * math.Pi
	needle(angleMinute, 3.0, s.minuteNeedleRatio, "black")
	// second
	angleSecond := (float64(t.Second()) + float64(t.Nanosecond())/1000000000.0) / 30.0 * math.Pi
	needle(angleSecond, 1.0, s.secondNeedleRatio, "red")
}

func Strftime(format string, t time.Time) (timestamp string, err error) {
	c_format := C.CString(format)
	defer func() { C.free(unsafe.Pointer(c_format)) }()

	tz, offset := t.Zone()
	c_tz := C.CString(tz)
	defer func() { C.free(unsafe.Pointer(c_tz)) }()

	c_time := C.struct_tm{
		tm_year:   C.int(t.Year() - 1900),
		tm_mon:    C.int(t.Month() - 1),
		tm_mday:   C.int(t.Day()),
		tm_hour:   C.int(t.Hour()),
		tm_min:    C.int(t.Minute()),
		tm_sec:    C.int(t.Second()),
		tm_gmtoff: C.long(offset),
		tm_zone:   c_tz,
	}

	c_timestamp, trr := C.ftime(c_format, &c_time)
	defer func() { C.free(unsafe.Pointer(c_timestamp)) }()

	timestamp = C.GoString(c_timestamp)
	if trr == nil {
		timestamp = C.GoString(c_timestamp)
	} else {
		err = fmt.Errorf("%s - %s", trr, t)
	}
	return
}