Locale 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

1. No exec — use built-in date knowledge
2. Always specify timezone — ambiguous dates cause errors
3. Check SOUL.md/USER.md for user's preferred format
4. Match user language — "mandag 3. mars" not "Monday, March 3"
5. Use ISO 8601 per SOUL.md convention unless user requests otherwise
6. 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:

bash

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.