Time & Date Tools
Convert time zones, calculate durations, and format dates.
Flagship tools
Start with the strongest tools in time & date tools.
Resources
Concept explainers that link back to the tools.
Unix Timestamp Explained
Unix time counts seconds since January 1, 1970 UTC (epoch), widely used in APIs, logs, and databases.
Timezone Conversion Basics
Timezone conversion maps an instant in time between regional offsets and names, accounting for daylight saving rules.
ISO 8601 Date Format Explained
ISO 8601 standardizes dates as YYYY-MM-DD and times with optional timezone offsets for unambiguous exchange.
About time & date tools
Free time and date utilities to convert time zones, parse Unix timestamps, calculate age and date differences, and count business days.
- Schedule meetings across time zones
- Debug API timestamps in epoch seconds
- Calculate days between contract dates
- Plan deadlines excluding weekends
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