Example code for multi-time zone time conversion in Go language

In daily development, we often encounter the needs of global applications such as cross-border e-commerce and international conference scheduling. At this time, dealing with multi-time zone time is a common problem. For example, you may need to convert Beijing time for an event to Los Angeles time, New York time, and London time. This article will explain in detail how to do this task gracefully using Go.

Go official time package introduction

Go provides a powerful time processing package time, which includes the core capabilities of processing time, time zone and date conversion.
All AbouttimeThe usage method of the package can be found in the official documentationtime packageFound in
When performing multi-time zone time conversion, understanding the following core concepts is crucial for operating time:

• : The time in Go is represented by a structure, including date, time, time zone and other information.
• : Time zone information, Go uses to represent the area of ​​time.
• and : Used to parse and format time strings.

How to convert Beijing time to other time zone time

Suppose we need to convert the current Beijing time to Los Angeles time, New York time and London time. The following steps are required:

• Get Beijing time.
• Load the target time zone.
• Use the method to convert Beijing time to the target time zone.

Convert current Beijing time to Los Angeles, New York and London time

package main

import (
	"fmt"
	"time"
)

func main() {
	// Step 1: Define the time zone where Beijing time is located	beijingLocation, err := ("Asia/Shanghai")
	if err != nil {
		("The time zone where Beijing time is located cannot be loaded:", err)
		return
	}

	// Step 2: Get the current Beijing time	now := ()
	beijingTime := (beijingLocation)
	("Beijing time:", ("2006-01-02 15:04:05"))

	// Step 3: Loading the target time zone	losAngelesLocation, err := ("America/Los_Angeles")
	if err != nil {
		("Unable to load the time zone where Los Angeles time is:", err)
		return
	}

	newYorkLocation, err := ("America/New_York")
	if err != nil {
		("Unable to load the time zone where New York time is:", err)
		return
	}

	londonLocation, err := ("Europe/London")
	if err != nil {
		("Cannot load the time zone where London time is:", err)
		return
	}

	// Step 4: Time converted to different time zones	losAngelesTime := (losAngelesLocation)
	newYorkTime := (newYorkLocation)
	londonTime := (londonLocation)

	// Step 5: Print the result	("Los Angeles Time:", ("2006-01-02 15:04:05"))
	("New York Time:", ("2006-01-02 15:04:05"))
	("London Time:", ("2006-01-02 15:04:05"))
}

Convert the designated Beijing time to Los Angeles, New York and London time

package main

import (
	"fmt"
	"time"
)

func main() {
	// Beijing time string	beijingTimeStr := "2025-01-15 10:00:00"

	// Define the time format	layout := "2006-01-02 15:04:05"

	// parse the string as	beijingLocation, _ := ("Asia/Shanghai")
	beijingTime, err := (layout, beijingTimeStr, beijingLocation)
	if err != nil {
		("Time parsing error:", err)
		return
	}

	// Convert to Los Angeles time	losAngelesLocation, _ := ("America/Los_Angeles")
	losAngelesTime := (losAngelesLocation)

	// Convert to New York time	newYorkLocation, _ := ("America/New_York")
	newYorkTime := (newYorkLocation)

	// Convert to London time	londonLocation, _ := ("Europe/London")
	londonTime := (londonLocation)


	("Beijing time:", (layout))
	("Los Angeles Time:", (layout))
	("New York Time:", (layout))
	("London Time:", (layout))
}

Verify that the conversion time is correct

EnterTime, date, time zone and time difference around the world now - 24 hours, search separatelyBeijing time、Los Angeles Time、New York timeandLondon time. Compare the results and compare the daylight saving time information if there is a demand for daylight saving time.

Things to note

• Correct loading of time zone data
  Go uses the IANA time zone database (TZ database). Time zone names such as "Asia/Shanghai" and "America/Los_Angeles" are standard time zone identifiers.
  Make sure that the operating environment (especially the container environment) contains the latest time zone data, otherwise the time zone information may be inaccurate.
• Daylight saving time treatment
  Daylight saving time (DST) may be enabled in different regions. Go's time zone data automatically handles daylight saving time without manual intervention.
  For example, Los Angeles will be 1 hour faster than Standard Time during daylight saving time.

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