How to parse time from database

Assuming you’re using the go-sql-driver/mysql you can ask the driver to scan DATE and DATETIME automatically to time.Time, by adding parseTime=true to your connection string.

See https://github.com/go-sql-driver/mysql#timetime-support

Example code:

db, err := sql.Open("mysql", "root:@/?parseTime=true")
if err != nil {
    panic(err.Error()) // Just for example purpose. You should use proper error handling instead of panic
}
defer db.Close()

var myTime time.Time
rows, err := db.Query("SELECT current_timestamp()")

if rows.Next() {
    if err = rows.Scan(&myTime); err != nil {
        panic(err)
    }
}

fmt.Println(myTime)

Notice that this works with current_timestamp but not with current_time. If you must use current_time you’ll need to do the parsing youself.

This is how you do custom parsing:

First, we define a custom type wrapping []byte, that will automatically parse time values:

type rawTime []byte

func (t rawTime) Time() (time.Time, error) {
    return time.Parse("15:04:05", string(t))
}

And in the scanning code we just do this:

var myTime rawTime
rows, err := db.Query("SELECT current_time()")

if rows.Next() {
    if err = rows.Scan(&myTime); err != nil {
        panic(err)
    }
}

fmt.Println(myTime.Time())