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Go Timestamp Examples

Complete guide to working with timestamps in Go. Learn time package, formatting, and best practices.

Get Current Timestamp

Get current Unix timestamp in Go

package main

import (
    "fmt"
    "time"
)

func main() {
    // Get current Unix timestamp in seconds
    now := time.Now()
    unixSeconds := now.Unix()
    fmt.Println("Unix seconds:", unixSeconds) // 1729584000
    
    // Get Unix timestamp in milliseconds
    unixMilli := now.UnixMilli()
    fmt.Println("Unix milliseconds:", unixMilli) // 1729584000000
    
    // Get Unix timestamp in nanoseconds
    unixNano := now.UnixNano()
    fmt.Println("Unix nanoseconds:", unixNano)
    
    // Get Unix timestamp in microseconds
    unixMicro := now.UnixMicro()
    fmt.Println("Unix microseconds:", unixMicro)
}

Convert Timestamp to Time

Convert Unix timestamp to time.Time object

package main

import (
    "fmt"
    "time"
)

func main() {
    // From Unix seconds
    timestamp := int64(1729584000)
    t := time.Unix(timestamp, 0)
    fmt.Println(t) // 2024-10-22 01:20:00 +0000 UTC
    
    // From Unix milliseconds
    timestampMilli := int64(1729584000000)
    t2 := time.UnixMilli(timestampMilli)
    fmt.Println(t2)
    
    // From Unix microseconds
    timestampMicro := int64(1729584000000000)
    t3 := time.UnixMicro(timestampMicro)
    fmt.Println(t3)
    
    // Format the time
    formatted := t.Format("2006-01-02 15:04:05")
    fmt.Println(formatted) // "2024-10-22 01:20:00"
}

Parse String to Timestamp

Parse date strings and convert to timestamps

package main

import (
    "fmt"
    "time"
)

func main() {
    // Parse RFC3339 (ISO 8601)
    str := "2024-10-22T01:20:00Z"
    t, err := time.Parse(time.RFC3339, str)
    if err != nil {
        panic(err)
    }
    fmt.Println(t.Unix()) // 1729584000
    
    // Parse custom format
    customStr := "2024-10-22 01:20:00"
    layout := "2006-01-02 15:04:05"
    t2, err := time.Parse(layout, customStr)
    if err != nil {
        panic(err)
    }
    fmt.Println(t2.Unix())
    
    // Parse with timezone
    loc, _ := time.LoadLocation("America/New_York")
    t3, _ := time.ParseInLocation(layout, customStr, loc)
    fmt.Println(t3.Unix())
}

Quick Reference

Get Current Timestamp

time.Now().Unix()time.Now().UnixMilli()time.Now().UnixNano()

Parse Timestamp

time.Unix(sec, 0)time.UnixMilli(ms)time.UnixMicro(micro)

Format Time

t.Format("2006-01-02")t.Format(time.RFC3339)t.Format("01/02/2006")

Parse String

time.Parse(layout, str)time.ParseInLocation(...)time.ParseDuration(str)