Linux date Guide

Complete beginner-friendly guide to date on Linux, covering Arch Linux, CachyOS, and other distributions including date display, date formatting, and date manipulation.

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Table of Contents

1. date Basics
2. Date Display
3. Date Formatting
4. Date Manipulation
5. Troubleshooting

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date Basics

Current Date

Basic usage:

# Show current date
date

# Displays current date and time

Formatted Date

Custom format:

# Custom format
date +"%Y-%m-%d"

# Output: 2024-01-15

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Date Display

ISO Format

ISO 8601:

# ISO format
date -I

# Output: 2024-01-15

RFC Format

RFC 2822:

# RFC format
date -R

# Output: Mon, 15 Jan 2024 10:30:00 +0000

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Date Formatting

Format String

Custom format:

# Format string
date +"%Y-%m-%d %H:%M:%S"

# Output: 2024-01-15 10:30:00

Common Formats

Useful formats:

# Year-Month-Day
date +"%Y-%m-%d"

# Day/Month/Year
date +"%d/%m/%Y"

# Full date
date +"%A, %B %d, %Y"

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⏰ Date Manipulation

Set Date

Change date:

# Set date (requires root)
sudo date -s "2024-01-15 10:30:00"

# -s = set (sets system date)

Relative Dates

Add/subtract:

# Tomorrow
date -d "tomorrow"

# Next week
date -d "next week"

# 5 days ago
date -d "5 days ago"

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Troubleshooting

date Not Found

Check installation:

# date is part of coreutils
# Usually pre-installed

# Check date
which date

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Summary

This guide covered date usage, date formatting, and date manipulation for Arch Linux, CachyOS, and other distributions.

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Next Steps

• cal Guide - Calendar display
• timedatectl Guide - Time management
• Time Synchronization - Time sync
• date Documentation: man date

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This guide covers Arch Linux, CachyOS, and other Linux distributions. For distribution-specific details, refer to your distribution's documentation.