BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
NAME:I slept for 3h 59m
X-WR-CALNAME:I slept for 3h 59m
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:STANDARD
DTSTART:20221030T020000
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:20230326T010000
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20260115T001439
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:https://taylordrayson.com/2023/01/10/sleep
DTSTAMP:20261012T001439Z
DTSTART;TZID=Europe/London:20230110T061800
DTEND;TZID=Europe/London:20230110T101700
SUMMARY:I slept for 3h 59m
DESCRIPTION:I went to bed at 6:18am and woke at 10:17am. My sleep score was
  38.
URL:https://taylordrayson.com/2023/01/10/sleep
END:VEVENT
END:VCALENDAR