Get First Working Day of the Next Month

Performing calculations with dates is an essential part of many business processes, as most reports and invoices contain time-related data. Robomotion enables you to add various time units to date values and get precise results for further processing.

What Get First Working Day of the Next Month can do

• Robomotion.DateTime.Now (optLayout: 'RFC3339', optTimezoneOffset: 'Local') → msg.now.
• Core.Programming.Function builds msg.first_day_of_next_month as new Date(year, month+1, 1, 0, 0, 1).toISOString().
• Robomotion.DateTime.Split on msg.first_day_of_next_month → msg.first_parts (exposes weekday).
• Branch (Core.Programming.Function, outputs: 2) — port 0 when msg.day_of_week starts with S (Saturday/Sunday), port 1 otherwise.
• Weekend branch: Core.Dialog.MessageBox titled Working Day shows First working day of next month is Monday.
• Weekday branch: Function composes msg.dialog_text; Core.Dialog.MessageBox titled Working day info shows it.

Behind the scenes

• The S-prefix test catches Saturday and Sunday in a single comparison (msg.day_of_week.charAt(0).toUpperCase() === 'S') and avoids locale-specific weekday strings when English locale is assumed.
• December-to-January rollover is handled implicitly by new Date(year, month+1, 1) — JavaScript's Date constructor normalises month overflow, so no manual year bump is needed.
• The weekend branch does not compute Monday's actual date — it just displays the word "Monday". If the real date is required, add a loop that increments the day until weekday === 'Monday' before the message box.
• The 0, 0, 1 seconds argument shifts the timestamp one second past midnight, which avoids edge cases where a subsequent Split rounds down into the previous day under some timezone conversions.