Time & Work
Hourly Pay & Work Hours (Korea)
Turn clock-in and clock-out times into hours and pay with South Korea’s statutory night, overtime and holiday premiums, and convert to daily, weekly and monthly pay.
Date Poll
Pick candidate dates, share a link, let everyone mark the days they can make and see the overlap. No login; polls are deleted after 60 days.
Random Picker, Dice & Draws
Draw lots, split teams, shuffle seats, run a Secret Santa, pick numbers, roll dice or flip a coin — all with cryptographic randomness.
Date Calculator — Days Between & D-Day
Count days between dates, add or subtract days, D-days and 100-day anniversaries, weekdays excluding Korean public holidays (2026–2027) and Korean school graduation years.
Timer, Stopwatch, Pomodoro & Alarm
A countdown timer, lap stopwatch, Pomodoro timer and alarm on one page. Time is re-read from your device clock, so switching tabs never throws it off.
Korea Military Discharge Date Calculator
Find your discharge date, D-day and service progress for South Korea military service by branch, using current service lengths.
Korea CSAT (Suneung) D-day & Exam Clock
Count down to Korea’s 2027 CSAT (Suneung) on November 19, 2026, with an exam clock that follows the official timetable.
Korea Age Calculator — Man Age
Enter a birth date to get international (man) age as used in South Korea since June 2023, plus Korean year age, counting age and zodiac animal.
Chart Maker
Enter labels and numbers to get a bar, line or pie chart image, or paste a spreadsheet table to draw several series.
UTM Link Builder
Add source and campaign UTM tags to a link so visits show up in analytics; any existing UTM tags are replaced, not duplicated.
Sleep Cycle Calculator
Find bedtimes for your wake-up time, or wake-up times if you sleep now, using 90-minute cycles plus time to fall asleep. A general guide, not medical advice.
Ladder Game — Random Draw
Enter names and outcomes, build a random ladder (Amidakuji) and reveal results one by one or all at once. Every assignment is equally likely.
World Clock & Meeting Planner
Pick up to 8 cities and find meeting times inside everyone’s working hours, with daylight saving applied.
Pomodoro Timer
Alternate 25-minute focus sessions and 5-minute breaks, track tasks with estimated pomodoros and a finish time, and see today’s stats. Keeps running after a reload, no login.
Time Calculator — Add Hours & Minutes
Add or subtract hours, minutes and seconds, find the time between two clock times and total a list of durations, also as decimal hours.
Korean Lunar Calendar Converter
Convert between the Korean lunar and solar calendars (1900–2050, leap months included) and see the sexagenary cycle and Korean moving-day calendar.
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