Free date and time tools — calculate date differences, convert Unix timestamps, run countdowns, convert timezones.
QuickToolz Date & Time Tools is a free set of utilities for calculating dates, converting timestamps, running countdowns, and switching between timezones. Whether you are planning a project deadline, debugging a Unix timestamp, or coordinating a meeting across continents, these tools deliver answers instantly.
Date difference calculator — find the exact number of days, weeks, months, or years between any two dates
Unix timestamp converter — convert epoch seconds/milliseconds to human-readable dates and back
Countdown timer — count down to any future date or event
Timezone converter — translate a time from one timezone to any other, including DST handling
Date math is famously error-prone — leap years, DST shifts, time zones, and epoch units all conspire to break naive code. Our tools use battle-tested date libraries and clear UTC/local labelling so you never miscalculate a deadline or meeting time again.
Got questions? We’ve got answers. Common questions about Date & Time Tools.