Sysadmin Tools

Calculate schedules, timestamps, availability targets, and Unix permissions.

CRONCron Expression ToolParse and generate standard five-field Unix cron expressions and preview upcoming runs.TIMEUnix Timestamp ConverterConvert Unix seconds or milliseconds to UTC, local time, and ISO 8601, or convert back.SLASLA & Uptime CalculatorCalculate allowed downtime, availability, and SRE error budgets for an SLA or SLO.MODEchmod Permission CalculatorConvert Unix permission numbers to symbolic mode and build modes with checkboxes.