Epoch
A real Unix timestamp tool for converting, comparing, and calculating epoch timestamps. All conversions use the system date command with support for both local and UTC output.
Commands
| Command | Description |
|---|---|
epoch now | Show current epoch timestamp + human-readable date (local & UTC) |
epoch convert <timestamp> | Convert an epoch timestamp to human-readable local, UTC, and age |
epoch from <date-string> | Convert a human-readable date string to epoch |
epoch diff <ts1> <ts2> | Calculate difference between two timestamps (seconds, minutes, hours, days) |
epoch add <timestamp> <seconds> | Add seconds to a timestamp and show the result |
epoch version | Show version |
epoch help | Show available commands and usage |
Requirements
- Bash 4+ (
set -euo pipefail) date,awk— standard Unix utilities- No external dependencies or API keys
When to Use
- Quick timestamp lookup —
epoch nowgives you the current epoch + human date instantly - Debugging timestamps in logs —
epoch convert 1700000000shows you what that number actually means - Parsing date strings —
epoch from '2024-01-15 10:30:00'gets you the epoch value - Calculating time differences —
epoch diff <ts1> <ts2>shows the gap in every unit - Time arithmetic —
epoch add 1700000000 3600adds an hour and shows the result
Examples
# Show current epoch + human-readable date
epoch now
# Convert epoch to date
epoch convert 1700000000
# Convert date string to epoch
epoch from '2024-01-15 10:30:00'
epoch from 'Jan 15 2024'
# Difference between two timestamps
epoch diff 1700000000 1700086400
# Add 1 hour (3600 seconds) to a timestamp
epoch add 1700000000 3600
# Add 7 days to a timestamp
epoch add 1700000000 604800
Example Output
$ epoch now
┌─────────────────────────────────────┐
│ Current Time │
├─────────────────────────────────────┤
│ Epoch: 1773916290 │
│ Human: 2026-03-19 18:31:30 CST │
├─────────────────────────────────────┤
│ UTC: 2026-03-19 10:31:30 UTC │
└─────────────────────────────────────┘
$ epoch diff 1700000000 1700086400
┌───────────────────────────────────────────────────┐
│ Timestamp Difference │
├───────────────────────────────────────────────────┤
│ From: 1700000000 (2023-11-15 06:13:20 CST) │
│ To: 1700086400 (2023-11-16 06:13:20 CST) │
├───────────────────────────────────────────────────┤
│ Seconds: 86400 │
│ Minutes: 1440.00 │
│ Hours: 24.00 │
│ Days: 1.0000 │
│ Duration: 1d 0h 0m 0s │
└───────────────────────────────────────────────────┘
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