Delx

Cron Expression Explainer

Paste a cron expression and get a plain-English explanation of what it does, along with the next scheduled run times. Supports standard 5-field cron syntax.

>_Cron Expression ExplainerLIVE API

Note: The API expects the "expression" field. The demo sends "input" which may not match. For accurate results, use the CLI: delx cron "*/5 * * * *"

Usage

CLI

delx cron "*/5 * * * *"
delx cron "0 9 * * MON-FRI"

REST (curl)

curl -X POST https://api.delx.ai/api/v1/utils/cron \
  -H "Content-Type: application/json" \
  -d '{"expression": "*/5 * * * *"}'

MCP (JSON-RPC)

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "cron",
    "arguments": { "expression": "*/5 * * * *" }
  }
}

FAQ

Does it support 6-field cron (with seconds)?

Currently only standard 5-field cron expressions are supported (minute, hour, day-of-month, month, day-of-week). Extended formats with seconds are on the roadmap.

How many next-run times does it return?

The response includes the next 5 scheduled execution times in ISO 8601 format (UTC).

Does it support named days and months?

Yes. Both three-letter abbreviations (MON, JAN) and numeric values are accepted for day-of-week and month fields.

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