Toolivaro

Time, date, and scheduling tools

Scheduling spans timezones, date math, and systems that run on their own clocks. These tools convert times across zones, compute real date differences including business days, build cron expressions that describe when a job actually runs, and find overlap windows for meetings — all computed locally in your timezone, with the assumptions stated on each page.

Popular tools

Cron Builder Stable Build and validate five-field cron expressions with a human-readable description and honest next-run times.
Time Zone Converter Stable Convert any date and time between IANA time zones with correct daylight-saving handling and explicit offsets.
Unix Timestamp Converter Stable Convert between Unix seconds, Unix milliseconds, ISO 8601, and human-readable local time — live, fully local.
Date Difference Calculator Stable Calculate the exact number of days, weeks, months, and years between two dates — with a single trusted method.
Business Days Calculator Stable Count business days between dates or add business days to a date — weekends and your own holidays excluded.
Meeting Overlap Planner Stable Find the time windows when teams in different time zones can meet, using their local work hours and DST-aware math.
Age Calculator Stable Calculate exact age in years, months, and days, plus total days lived and the days until your next birthday.
Developer text and JSON toolkit Format, minify, validate, convert, and diff JSON and text — plus regex testing and token counting for LLM work. Startup and freelance finance calculators Runway, hourly rates, break-even, and compound growth — the cash math that founders and freelancers live with.