Schedule format reference

Syntax

[time-range] [day-spec]

The time range must precede the day specification. Both are required unless using a named preset.

Time range

Hour precision

H-H

Single or double-digit hours in 24-hour format.

Example	Start	End
`9-17`	9:00 AM	5:00 PM
`0-23`	Midnight	11:00 PM
`8-18`	8:00 AM	6:00 PM

Minute precision

HHMM-HHMM

Zero-padded 4-digit times.

Example	Start	End
`0800-1730`	8:00 AM	5:30 PM
`0900-1700`	9:00 AM	5:00 PM
`0630-2200`	6:30 AM	10:00 PM

Day specification

Value	Days
`mon`	Monday only
`tue`	Tuesday only
`wed`	Wednesday only
`thu`	Thursday only
`fri`	Friday only
`sat`	Saturday only
`sun`	Sunday only
`mon-fri`	Monday through Friday
`weekdays`	Monday through Friday (alias)
`sat-sun`	Saturday and Sunday
`weekends`	Saturday and Sunday (alias)
`mon-sun`	All days
`daily`	All days (alias)

Day ranges use the order Monday → Sunday. wed-fri is valid; fri-wed is not.

Named presets

Value	Equivalent	Description
`weekdays-business-hours`	`9-17 mon-fri`	Mon–Fri, 9 AM–5 PM
`always-on`	—	No schedule, always running
`always-off`	—	No schedule, always stopped

Examples

9-17 mon-fri              Monday–Friday, 9 AM–5 PM
8-18 weekdays             Monday–Friday, 8 AM–6 PM
0800-1730 mon-fri         Monday–Friday, 8:00 AM–5:30 PM
7-19 mon-fri              Monday–Friday, 7 AM–7 PM
10-16 weekends            Saturday–Sunday, 10 AM–4 PM
9-17 sat-sun              Saturday–Sunday, 9 AM–5 PM
0-23 mon-sun              24 hours, every day
6-22 daily                Every day, 6 AM–10 PM
weekdays-business-hours   Monday–Friday, 9 AM–5 PM (preset)

Validation rules

Time must come before days (9-17 mon-fri ✓, mon-fri 9-17 ✗)
Hours must be 0–23
Minutes must be 0–59
End time must be after start time
Day ranges must follow Monday → Sunday order

If the schedule tag value is invalid, the resource will still appear in the dashboard with a parse error notice. No EventBridge rules will be created until the value is corrected.