# Opening days 1 to 10

**Opening days 1**

This constraint lists all possible visit days (up to 64) during which the time window defined by **Opening time 1** and **Closing time 1** applies.\
**Format:** numeric or date.

You can specify these days individually (e.g., 1,4), as a range (e.g., 1–4), as integers (1 to 64), or using date formats (e.g., 14/05/2016 ⇒ 17/07/2016).

**Example 1:**\
**Opening days 1 = 1,2,5** (or **14/05/2016, 15/05/2016, 18/05/2016**)\
This means the visit can occur only on days 1, 2, and 5 in the schedule (or on 14/05/2016, 15/05/2016, and 18/05/2016) within the time window defined by **Opening time 1** and **Closing time 1**.

**Example 2:**\
**Opening days 1 = 1–5** (or **14/05/2016 ⇒ 18/05/2016**)\
This means the visit can occur on any day from 1 to 5 (or between 14/05/2016 and 18/05/2016) within the time window set by **Opening time 1** and **Closing time 1**.

<figure><img src="/files/WMQSyJasKdZWyLOArVvS" alt=""><figcaption></figcaption></figure>

**Opening days 2**

This constraint defines the set of Opening days (up to 64) during which the time window specified by **Opening time 2** and **Closing time 2** applies.\
These days can be listed individually or as a range, and follow the same format used in **Opening days 1**.

**Example 1:**\
The customer can receive a delivery on:

* **Monday** between **07:00 AM and 05:00 PM**, and
* **Wednesday** between **09:00 AM and 06:00 PM**.

**Configuration**:

* Opening time 1 = 07:00:00
* Closing time 1 = 17:00:00
* Opening days 1 = 1
* Opening time 2 = 09:00:00
* Closing time 2 = 18:00:00
* Opening days 2 = 3

**Example 2:**\
The customer can receive a delivery:

* From **Monday to Friday** between **07:00 AM and 05:00 PM**, and
* On **Saturday** between **09:00 AM and 12:00 PM**.

**Configuration**:

* Opening time 1 = 07:00:00
* Closing time 1 = 17:00:00
* Opening days 1 = 1–5
* Opening time 2 = 09:00:00
* Closing time 2 = 12:00:00
* Opening days 2 = 6

**Opening days 3**

This constraint lists all Opening days (up to 64) for which the time window defined by **Opening time 3** and **Closing time 3** applies. These days can be specified individually or as a range, using the same format as **Opening days 1**.

**Opening days 4**

This constraint specifies all Opening days (up to 64) to which the time window defined by **Opening time 4** and **Closing time 4** applies. These days can be entered individually or as a range, following the same format as **Opening days 1**.


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