# -*- coding: utf-8 -*-
# # Time Formatting / Parsing

# Go supports time formatting and parsing via pattern-based layouts.  Comments from [Go by Example](https://gobyexample.com).

# ## Imports

import "fmt"

import "time"

# ## Basic Time Formatting

# Here’s a basic example of formatting a time according to RFC3339, using the corresponding layout constant.

t := time.Now()

t.Format(time.RFC3339)

# ## Time Parsing

# Time parsing uses the same layout values as Format.

t1, _ := time.Parse(
        time.RFC3339,
        "2012-11-01T22:08:41+00:00")

# Parse will return an error on malformed input explaining the parsing problem.

ansic := "Mon Jan _2 15:04:05 2006"
_, e := time.Parse(ansic, "8:41PM")

# ## Custom Layouts

# Format and Parse use example-based layouts. Usually you’ll use a constant from time for these layouts, but you can also supply custom layouts. Layouts must use the reference time Mon Jan 2 15:04:05 MST 2006 to show the pattern with which to format/parse a given time/string. The example time must be exactly as shown: the year 2006, 15 for the hour, Monday for the day of the week, etc.

t.Format("3:04PM")

t.Format("Mon Jan _2 15:04:05 2006")

t.Format("2006-01-02T15:04:05.999999-07:00")

form := "3 04 PM"
t2, _ := time.Parse(form, "8 41 PM")

# ## String Formatting

# For purely numeric representations you can also use standard string formatting with the extracted components of the time value.

fmt.Printf("%d-%02d-%02dT%02d:%02d:%02d-00:00\n",
        t.Year(), t.Month(), t.Day(),
        t.Hour(), t.Minute(), t.Second())

StarcoderdataJupyterScriptsDedupFiltered