Timestamp Converter MCP - Unix, ISO 8601, Timezone & Cron Tools

Timestamp Converter MCP Server

EN: Convert timestamps, handle timezone math, parse cron expressions, and calculate date differences through your AI assistant. 繁中: 透過 AI 助手轉換時間戳記、處理時區計算、解析 cron 表達式、計算日期差異。 日本語: AIアシスタントでタイムスタンプ変換、タイムゾーン計算、cron式解析、日付差分計算ができます。

What is this? Why do I need it?

• Working with dates and timezones is one of the most error-prone tasks in programming. Is 1710000000 March 9 or March 10? Depends on the timezone. This server converts between Unix timestamps, ISO 8601, and human-readable formats instantly, so you always know exactly what time a timestamp represents.
• Timezone math is confusing and easy to get wrong. When your server is in UTC, your users are in Tokyo, and your logs say 14:30 -- what time is that locally? The timezone converter handles 400+ IANA timezones and shows you the offset so there is no ambiguity.
• Cron expressions look like random numbers until you learn them. Instead of memorizing that */15 9-17 * * 1-5 means "every 15 minutes during business hours on weekdays," the parser gives you a plain-English explanation and the next 5 scheduled run times.

Quick Install

Cursor (One Click)

Claude Desktop

Add to your MCP config file (claude_desktop_config.json):

{
  "mcpServers": {
    "timestamp-converter": {
      "url": "https://timestamp-converter-mcp.yagami8095.workers.dev/mcp"
    }
  }
}

Smithery

npx @smithery/cli install @openclaw-ai/timestamp-converter-mcp

Tools

Tool	What it does	Example prompt
convert_timestamp	Convert between Unix epoch, ISO 8601, human-readable, and relative time	"Convert Unix timestamp 1710000000 to a human-readable date"
timezone_convert	Convert a datetime between any two IANA timezones	"What time is 2024-03-15 14:30 UTC in Tokyo and New York?"
parse_cron	Explain a cron expression in plain English and show next run times	"What does this cron do: */15 9-17 * * 1-5"
time_diff	Calculate the difference between two dates in multiple units	"How many days between January 1 and March 15, 2024?"
format_duration	Convert seconds or milliseconds to human-readable duration	"Format 90061 seconds as a readable duration"

Copy-Paste Examples

Example 1: Debug a timestamp from your logs

Just say to your AI: "Convert this Unix timestamp to a human-readable date in my timezone (Asia/Taipei): 1710000000"

Example 2: Figure out meeting times across timezones

Just say to your AI: "I have a meeting at 2024-03-20 10:00 AM in San Francisco. What time is that in Tokyo, London, and New York?"

Example 3: Understand a cron schedule

Just say to your AI: "Explain this cron expression and tell me the next 5 run times: 0 2 * * 0"

Plans

Plan	Cost	Calls
Free	$0	30/day
Pro	$29/mo	50,000/month

FAQ

Q: Do I need to install anything? A: No. This runs on Cloudflare Workers. Add the URL to your MCP config and start converting timestamps immediately. No API key needed for the free tier.

Q: Which timezones are supported? A: All 400+ IANA timezones (like America/New_York, Asia/Tokyo, Europe/London). These are the standard timezone identifiers used by every major programming language and operating system.

Q: Does it handle daylight saving time correctly? A: Yes. The server uses IANA timezone data which includes all DST transition rules. When you convert across timezones, DST offsets are applied automatically based on the specific date.

Links

• Main repo
• All 9 servers

License

MIT