server-tools/auto_backup/data/ir_cron.xml

<?xml version="1.0" encoding="UTF-8"?>

<openerp>
<data noupdate="1">

    <record id="ir_cron_backup_scheduler_0" model="ir.cron">
        <field name="name">Backup Scheduler</field>
        <field name="user_id" ref="base.user_root" />
        <field name="interval_number">1</field>
        <field name="interval_type">days</field>
        <field name="numbercall">-1</field>
        <field name="nextcall"
               eval="(datetime.now() + timedelta(days=1)).strftime('%Y-%m-%d 02:00:00')"
               />
        <field name="model">db.backup</field>
        <field name="function">action_backup_all</field>
    </record>

</data>
</openerp>