Logrus timestamp formatting

Question

I'm trying to transition from the Golang log package to Logrus. My issue is around how to customize the timestamp format of logged messages. The default is a counter of seconds since start but I want a "2016-03-24 17:10:15" format. My simple test code is:

package main

import (
        "github.com/Sirupsen/logrus"
)

func main() {
        customFormatter := new(logrus.TextFormatter)
        customFormatter.TimestampFormat = "2006-01-02 15:04:05"
        logrus.SetFormatter(customFormatter)
        logrus.Info("Hello Walrus")
}

This compiles and runs fine but the timestamp format is unchanged. Can anyone offer some insight into why it isn't working?

Thanks

score 41 · Accepted Answer · edited Apr 17 '19 at 14:23

41

I believe you want to set the following field to true to enable the timestamp when running it yourself with a TTY attached.

From the logrus.TextFormatter documentation:

// Enable logging the full timestamp when a TTY is attached instead of just
// the time passed since beginning of execution.
FullTimestamp bool

Tweaking your provided example:

package main

import (
    "github.com/Sirupsen/logrus"
)

func main() {
    customFormatter := new(logrus.TextFormatter)
    customFormatter.TimestampFormat = "2006-01-02 15:04:05"
    logrus.SetFormatter(customFormatter)
    logrus.Info("Hello Walrus before FullTimestamp=true")
    customFormatter.FullTimestamp = true
    logrus.Info("Hello Walrus after FullTimestamp=true")
}

Produces:

$ go run main.go
INFO[0000] Hello Walrus before FullTimestamp=true
INFO[2016-03-24 20:18:56] Hello Walrus after FullTimestamp=true

edited Apr 17 '19 at 14:23

Elad Tabak

2,317
4
23
33

answered Mar 24 '16 at 20:20

Brian

1,663
1
14
11

3

Why is that particular date used? Any other date in the same format results in strange results. The same date with 2007 gives me 3007 as the current year. – Bren May 03 '18 at 14:56
5

Golang's time formatting insanity is to use so called "reference date" as a template so instead of "YYYY-MM-DD" one have to use "2006-01-02" literally. See also https://stackoverflow.com/questions/20234104 – Onlyjob Sep 13 '18 at 01:05
12

As a one-liner: `logrus.SetFormatter(&logrus.TextFormatter{TimestampFormat: "2006-01-02 15:04:05", FullTimestamp: true})` – Eric Lindsey Aug 16 '19 at 00:09
1

I want milisecond too, how can I do that ? – insanely_sin Jul 27 '22 at 17:59
@insanely_sin `"2006-01-02 15:04:05.000"` – bodqhrohro Nov 25 '22 at 06:15

Logrus timestamp formatting

1 Answers1