How Can I Parse Non-Standard Timestamps in Go?

Parsing Timestamps in Go

Parsing timestamps from external sources, such as archives created by the tar utility, can be challenging due to the potential for unique formatting. The Go time package provides a variety of functions for parsing timestamps, but its intricate API can lead to confusion.

Parse with a Custom Template

For timestamps in a non-standard format, like "2011-01-19 22:15," it's necessary to use a custom layout template when parsing. Refer to the Go time package documentation for guidance on defining layout templates based on the format of your timestamp.

Example

For the timestamp "2011-01-19 22:15," we would define the layout template as "2006-01-02 15:04," where each component represents the corresponding part of the timestamp. The following code snippet demonstrates this approach:

package main

import (
    "fmt"
    "time"
)

func main() {
    t, err := time.Parse("2006-01-02 15:04", "2011-01-19 22:15")
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println(t) // Output: 2011-01-19 22:15:00 +0000 UTC
}

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