UrbanGlobalTrends is a free toolbox made by one person who works across time zones every day. Nine tools, all running inside your browser, plus guides that explain why the world's clocks work the way they do.
Nine tools in one place. No sign-up, no limits, and nothing is ever uploaded to a server.
Pick two cities and a date, and get the exact local time at the destination with Daylight Saving Time applied for that specific date. 83 cities across 59 countries.
Half-hour and quarter-hour offsets are included. If your city is missing, tell me.
The current time in 14 major cities, updated every second, with today's date in each one.
Convert PNG, JPEG, WebP, GIF, BMP or SVG to WebP, PNG or JPEG. Resize and set the quality before you save.
Nothing is uploaded.
Turn Markdown into clean HTML, or HTML back into Markdown. Converts as you type, with a live preview.
Live conversion · nothing is uploaded.
Convert a JSON array into a CSV table, or turn CSV rows back into JSON. Values are guessed as numbers, booleans and dates.
Live conversion · nothing is uploaded.
Switch text between UPPER, lower, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE.
Pick a style · converts as you type.
Encode text to Base64 or to a percent-encoded URL, and decode either one back to plain text.
UTF-8 safe · nothing is uploaded.
Read any color in HEX, RGB, HSL, HSV and CSS variable form. Click a value to copy it.
Click any value to copy it.
Turn a Unix timestamp into local time, UTC and ISO 8601, or turn a date and time into seconds and milliseconds.
Seconds are what most APIs want. Milliseconds are what JavaScript uses.
Click a value to copy it.
Files and text stay on your device. No upload, no account, no limits.
The questions people ask most about these tools.
Practical knowledge for anyone who lives, works, or travels across time zones. Written by the person who runs the site.
From railway timetables to atomic clocks: how the world agreed on what time it is, why UTC replaced GMT, and why some countries keep their own weird offsets.
Read article →What actually works after years of scheduling calls between Africa, the US, and Europe: async habits, boundaries, and the meetings you should refuse.
Read article →The one hour that silently breaks every "time difference" you memorised. Who does it, who doesn't, and how to stop it wrecking your meeting schedule.
Read article →Finding the overlap, writing timezone-proof invites, handling DST transitions, and the etiquette of politely refusing to join at an unreasonable hour.
Read article →Westbound vs. eastbound, why the recovery advice is so often wrong, and the cheap, evidence-based methods that frequent flyers actually use.
Read article →One person: Shema Prince, a freelancer based in Kigali, Rwanda, who works with clients across North America and Europe. The site began because date-correct time zone conversion was the thing I reached for constantly, and none of the tools I tried told me whether it was still the same day at the other end.
The Time Zone Converter is the heart of the site. The travel and time guides grew out of reader questions: why some countries skip DST, how the date line works, how to plan a journey across several time zones. Everything is written and checked by me.
More about the person behind the site →