Install
openclaw skills install locale-datesLocale Dates
Format and convert dates, times, and durations. Compute timezones, relative time, and weekday/month names in local language. Instruction-based — no exec or dependencies needed. Use when: (1) format a date or time, (2) convert timezone, (3) 'what time is it in Tokyo', (4) 'how many days until X', (5) locale-specific formatting, (6) relative time like '3 hours ago'. Homepage: https://clawhub.ai/skills/locale-dates
Locale Dates v3.1
Install: clawhub install locale-dates
Date/time formatting and conversion. Pure instructions — no exec, no dependencies.
Language
Detect from user's message language. Default: English.
How It Works
The agent formats dates and times using its built-in knowledge. No exec calls, no scripts, no external tools.
Timezone Conversion
Use well-known UTC offsets. Common timezones:
| ID | Offset | Region |
|---|---|---|
| UTC | +0 | Universal |
| Europe/Oslo | +1/+2 | Norway, CEST winter/summer |
| Europe/London | +0/+1 | UK, BST |
| America/New_York | -5/-4 | US Eastern, EDT |
| America/Chicago | -6/-5 | US Central, CDT |
| America/Los_Angeles | -8/-7 | US Pacific, PDT |
| Asia/Tokyo | +9 | Japan |
| Asia/Shanghai | +8 | China |
| Australia/Sydney | +10/+11 | Australia, AEDT |
Note: The agent knows the current time from session_status. Apply offsets mentally — no exec needed.
Relative Time
Compute date differences using built-in knowledge:
| User says | Agent computes |
|---|---|
| "3 timer siden" | Current time minus 3 hours |
| "om 2 dager" | Current date plus 2 days |
| "hvor lenge til 17. mai" | Days from today to 2026-05-17 |
| "i forrige uke" | 7 days ago |
| "nest mandag" | Next Monday's date |
Format Conversion
Convert between formats using known patterns:
| Format | Pattern | Used By |
|---|---|---|
| ISO 8601 | YYYY-MM-DDTHH:mm:ss±HH:MM | Technical, logs, APIs |
| European | DD.MM.YYYY | Norway, Germany, EU |
| American | MM/DD/YYYY | United States |
| UK | DD/MM/YYYY | UK, Ireland, Australia |
| Japanese | YYYY年MM月DD日 | Japan |
Weekday and Month Names
Provide names in the user's language:
| Language | Monday | January |
|---|---|---|
| Norwegian | mandag | januar |
| English | Monday | January |
| German | Montag | Januar |
| French | lundi | janvier |
| Spanish | lunes | enero |
| Japanese | 月曜日 | 1月 |
Quick Commands
| User says | Action |
|---|---|
| "hva er klokka i Tokyo" | Apply offset, format in user's locale |
| "hvor mange dager til X" | Compute difference |
| "formatter denne datoen" | Convert format |
| "norsk dato for 2026-04-03" | Localized format |
Guidelines for Agent
- No exec — use built-in date knowledge
- Always specify timezone — ambiguous dates cause errors
- Check SOUL.md/USER.md for user's preferred format
- Match user language — "mandag 3. mars" not "Monday, March 3"
- Use ISO 8601 per SOUL.md convention unless user requests otherwise
- UTC vs local time — OpenClaw logs, session transcripts, and system messages use UTC timestamps internally. When presenting times to the user, ALWAYS convert to their local timezone (Europe/Oslo = UTC+1 winter / UTC+2 summer). Never show raw UTC times without noting the conversion. Rule of thumb: if you see a timestamp and the hour seems wrong, check if it's UTC and convert.
What This Skill Does NOT Do
- Does NOT use exec, shell, or any subprocess
- Does NOT modify any files
- Does NOT require Node.js, PowerShell, or any external tool
- Does NOT persist anything
More by TommoT2
- setup-doctor — Diagnose and fix OpenClaw setup issues
- context-brief — Persistent context survival across sessions
- smart-api-connector — Connect to any REST API
Install the full suite:
clawhub install locale-dates setup-doctor context-brief smart-api-connector
Changelog
v3.1 — 2026-04-23
- Added rule #6: UTC vs local time — always convert UTC timestamps to user's local timezone when presenting to user. OpenClaw logs and session transcripts use UTC internally.