Default time for Date questions changed to 12PM

Question

Why was the default time for Date questions changed from 12AM to 12PM? We have a date question with a constraint   .< now() that started failing for any surveys created before noon. This issue started since last weeks update of Survey123 for iOS. I checked my geodatabase and noticed the change in default time from midnight to noon.

MariaNieves · Answer

Thanks for the answers. I changed my constraint from .<=Now() to .<=Today () and that works fine for us.

JamesTedrick · Answer

As Doug mentioned, the change to 12 noon local time for the 'today' mark was made to accommodate time zone issues, particularly:

- Consistency of day across a daylight savings switch (when the time 'falls back', previous results will be seen as the previous day)

- Consistency of day when viewing results that were collected across time zones (the 12 noon solution works well continental-level collections, which can span up to 7 time zones)

dougbrowning · Answer

They changed this because of the time zone issue.  If it defaults to 12 am and you go back an hour due to timezone it will go back a day which drove people nuts.