TimeKit — All-in-One Time & Date Toolkit

Timestamp converter, date formatter, world clock, date calculator, work hours, code snippets — 6 tools covering every time-handling scenario. All local, no data upload.

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6 Tools for Every Scenario

⏰
Timestamp → Date
Auto-detect s/ms/µs

Unix timestamp to/from date, auto-detect precision

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🌍
Multi-city World Clock
Auto-refresh

Multi-city timezone comparison, auto-refresh

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📅
Natural Language → Time
AI Parse

Natural language date parsing, date math

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🔧
Work Hours
w/ Break

Work hours, timer, and utility calculators

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💻
Code Snippets
One-click Copy

Time-related code snippets, one-click copy

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🎯
Date Formatter
12 Formats

12 date formats, auto-detect input format

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When Do You Need TimeKit?

⚙️

Backend: Timestamp Conversion

Database stores Unix timestamps, logs use milliseconds? Convert between timestamps and readable dates instantly. Open Tool →

🎯

Dev: Date Format Conversion

API returns ISO 8601, frontend needs US format, DB uses Unix? Convert between 12 formats, auto-detect input. Open Tool →

🌐

Global Teams: Timezone Comparison

Meeting with New York, London, Tokyo teams? World clock shows 12+ cities in real-time, find overlapping hours. Open Tool →

📆

Planning: Date & Workday Calc

"Can this ship next Friday? How many workdays?" Natural language parsing, auto-exclude weekends. Open Tool →

⏱️

Timesheet: Work Hours

Filling expense reports? Enter start/end times, auto-deduct breaks, get exact work duration. Open Tool →

⌨️

Coding: Time Code Snippets

Always looking up date formatting docs? Code snippets in JS, Python, Go, Java — copy and paste. Open Tool →

FAQ

Is TimeKit free?
Yes, all features are completely free, no registration or usage limits.
What timestamp formats are supported?
Unix seconds and milliseconds, auto-detect input, output in ISO 8601 and localized formats.
What formats does the Date Formatter support?
ISO 8601, RFC 2822, US (MM/DD/YYYY), EU (DD/MM/YYYY), Chinese long format, SQL DateTime, Unix timestamp, and more.
Is timezone data accurate?
Based on the browser Intl API, automatically handles DST transitions.
Does workday calculation include holidays?
Currently excludes weekends only, not official holidays.
Are code snippets production-ready?
They cover standard scenarios and can be used directly.
🏠
Local
All processing in your browser
🔒
Private
No data leaves your device
💰
Free
No sign-up, no limits
⚡
Instant
No install, just open and use
TimeKit · Developer Time Tools · All local, no data upload