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Penjelas Cron

Dekoder ekspresi cron gratis. Tempel cron 5-field dan dapatkan deskripsi dalam Bahasa Inggris sederhana tentang kapan ia berjalan. Untuk pg_cron, Linux crontab, GitHub Actions.

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Understanding · Five fields, a whole schedule.

Bab mendalam ini saat ini hanya tersedia dalam bahasa Inggris. Alat konversi di atas berfungsi dalam bahasa Anda; artikel penjelasan panjangnya belum diterjemahkan.

Pertanyaan yang sering diajukan

Quick answers.

What are the 5 cron fields?

minute (0-59), hour (0-23), day-of-month (1-31), month (1-12), day-of-week (0-7, both 0 and 7 mean Sunday).

How do I run something every 15 minutes?

Use */15 * * * * — that's 'every 15 minutes, every hour, every day'.

What does the '?' mean?

Quartz/Java cron uses '?' to mean 'no specific value' in either day-of-month or day-of-week. Standard Unix cron doesn't use it.

Day of week — is Sunday 0 or 7?

Both, in standard Unix cron. Some systems (Quartz) use 1-7 with Sunday = 1. We follow Unix convention.

Is the explainer free?

Yes — fully free, no signup, runs in your browser.

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