# Cron Expression Next Run

Parse cron and show the next run in natural language, local time, UTC, countdown seconds, and Unix timestamps.

> Canonical page: https://elysiatools.com/en/tools/cron-expression-next-run

- **Category:** Development

- **Keywords:** cron, next run, parser, timezone, timestamp

## Overview

Supports a fixed reference date, IANA timezone conversion, multiple future runs, natural-language scheduling, ISO time, Unix seconds, and Unix milliseconds.

## Inputs

- **Cron Expression** (text): */15 * * * * or 0 9 * * 1-5
- **Timezone (IANA)** (text): UTC, Asia/Shanghai, America/New_York
- **Reference Date** (text): 2026-08-04T00:07:00Z; blank uses now
- **Number of Runs** (number)
- **Output Language** (select)

## When to use

- Check when a Cron job will run next without manually calculating dates and times.
- Convert a scheduled job between an IANA timezone, local time, and UTC.
- Verify multiple future runs, countdown seconds, and Unix timestamp values for automation or debugging.

## How it works

- Enter a Cron expression such as `*/15 * * * *` or `0 9 * * 1-5`.
- Provide an IANA timezone such as `UTC`, `Asia/Shanghai`, or `America/New_York`.
- Optionally set a reference date and choose how many future runs to display, from 1 to 20.
- Review the schedule in natural language, time formats, countdown seconds, and Unix seconds and milliseconds.

## Use cases

- DevOps engineers can verify the next execution of deployment, backup, or monitoring jobs.
- Developers can convert weekday schedules between UTC and regional IANA timezones.
- Support teams can explain Cron schedules and provide exact future run times during troubleshooting.

## Frequently asked questions

### What Cron expressions can I enter?

You can enter standard Cron expressions such as `*/15 * * * *` or `0 9 * * 1-5`.

### Which timezone should I use?

Use an IANA timezone identifier, such as `UTC`, `Asia/Shanghai`, or `America/New_York`.

### What happens if I leave the reference date blank?

The tool uses the current date and time as the reference.

### How many future runs can I display?

You can request from 1 to 20 future runs. The default is 5.

### Does the tool show Unix timestamps?

Yes. Results include Unix seconds and Unix milliseconds, along with ISO and UTC time values.

## Related tools

- [NTP RFC 5905 / SNTP Leap Second & Epoch Decoder](https://elysiatools.com/en/tools/ntp-rfc-5905-sntp-leap-second-epoch-decoder): Decode an NTP/SNTP 48-byte packet: LI/VN/Mode bitfield, stratum, poll, precision, root delay/dispersion, reference ID (with clock & kiss codes), and four 64-bit 1900-epoch timestamps
- [Snowflake / Discord ID Bit Decoder](https://elysiatools.com/en/tools/snowflake-discord-id-bit-decoder): Decode 64-bit Snowflake-style IDs for Discord, Twitter, Mastodon, Sonyflake, Instagram, or a custom bit profile. Extract timestamp, worker/process/machine, sequence fields, align platform epochs, and infer a Discord shard when a shard count is supplied.
- [ULID / NanoID / KSUID / Snowflake ID Decoder](https://elysiatools.com/en/tools/ulid-nanoid-ksuid-snowflake-id-decoder): Decode lexically sortable IDs losslessly with BigInt: ULID (Crockford base32), KSUID (base62), NanoID, MongoDB ObjectId, and Discord/Twitter/Sonyflake Snowflakes — with ISO timestamps, raw hex, bit-level field breakdowns and birthday-bound collision probabilities.
- [Request Replay & Clock Skew Correction for Distributed Systems](https://elysiatools.com/en/tools/request-replay-clock-skew-correction-distributed-systems): Parse a raw HTTP request or curl command, estimate client↔server clock skew from the response Date header (NTP-style midpoint formula), inspect timestamp credentials (X-Amz-Date, x-ms-date, X-Timestamp, JWT iat/nbf), replay with ±skew offsets and diff the results against real tolerance windows (AWS SigV4 ±15 min, Azure, OAuth, JWT leeway).
- [Cron Expression Explainer](https://elysiatools.com/en/tools/cron-expression-explainer): Parse a 5-part / 6-part / Quartz cron expression into a plain-language schedule description, show the field-by-field breakdown, and list the next N execution times in any IANA timezone — with an AI-generated natural-language explanation in your language
- [Cron Expression Visualizer](https://elysiatools.com/en/tools/cron-expression-visualizer): Parse cron schedules, validate standard or Quartz syntax, and visualize the next execution times on a timeline and grouped calendar view
- [CSV Malformed Row Surgeon](https://elysiatools.com/en/tools/csv-malformed-row-surgeon): Surgically repair malformed CSV rows one at a time: unescaped (stray) quotes, mixed delimiters (tab/semicolon/comma in the same file), BOM-prefixed headers, CRLF/CR line endings and trailing empty lines. The surgeon parses tolerantly, shows a row-level red/green diff of every change it made (before → after, with the repair reason tagged), lists the rows it accepted unchanged, and emits the cleaned CSV. Optional AI repair can review suspicious rows after the deterministic pass. It complements the CSV Validator (which only reports problems) by actually fixing the damaged rows.
- [Unix Hex Timestamp Converter](https://elysiatools.com/en/tools/unix-hex-timestamp-converter): Convert Unix timestamps between hexadecimal and decimal/ISO — paste 0x5F6B3A2F, a bare 8-digit hex value, decimal seconds or milliseconds, or a date, and get every form back.

## Samples

- [Cron Expression Samples](https://elysiatools.com/en/samples/cron-expression): Collection of cron expressions for various scheduling patterns (every minute, hourly, daily, weekly, monthly, etc.)
- [Next.js Samples](https://elysiatools.com/en/samples/nextjs): Next.js framework examples - The React Framework for Production, with server-side rendering, routing, and modern web features
- [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion
- [Android Image Processing Kotlin Samples](https://elysiatools.com/en/samples/android-image-processing-kotlin): Android Kotlin image processing examples including reading/saving images, scaling, and format conversion