I needed a file created/modified during DST at 23:xx, which would mean a date change, but I didn't have one. I wanted to test the filter function (all the files I'm updating are new so there's no comparison).
#FREEFILESYNC TIME ZONE WINDOWS#
I think that once the files are collected, it's a simple comparison between Modified Datetimes (to see who's new) or between the modified datetimes and the Windows datetime (for the filtering function), right? I believe FFS uses the Modified time for the comparison. So the times match between all three Modified fields, and they reflect the DST time (which the device was on, I assume), while the filename and the EXIF data show the time without DST (which is weird but that's how my Samsung Phone behaves).īTW, I think that in addition to the options of "today", "this month", "this year" and "last x days", it would be beneficial to have a "from date-time" option, so users can copy files created since their last copy run (the "time" part makes that difference). Modified - copied by Windows Explorer: 3 18:14 Of course, DST is important, especially for the comparison function, so I tested FFS 7.8 on files from the summer time. I understand that there are two options so perhaps this should be a program setting, but I think that if there is no setting then the way that's compatible with Windows Explorer's copy function is preferable (i.e.
#FREEFILESYNC TIME ZONE SOFTWARE#
I tested it on FFS 7.8 and I'm glad to report that the times match perfectly! I'd like to take this opportunity to say what a great software FFS is. Indiana introduced DST in 2006.Thank you for the response. Most of Arizona and Hawaii don't use DST. In addition the uninhabited atolls of Baker Island (AoE) and Wake Island (WAKT) add to the time zone count, making 11 the total number of time zones in the US.Īlmost all states in the US use Daylight Saving Time (DST). There are 9 official time zones according to the law. The time zones in the law are defined by their offset from Coordinated Universal Time (UTC). Code, Title 15, Chapter 6, Subchapter IX - Standard Time.
Time zones in the USA are defined in the U.S. So FFS is available for Linux Debian, but was compiled on Intel ×8664 and would not work on the ARM-based processor of the RPi. Since 1967, the US Department of Transportation (DOT) has been responsible for governing time zones in the country. I could only find two forums adressing this: the FreeFileSync one, and the RaspberryPi one and none seem to have an answer. The US was divided into 4 standard time zones on November 18, 1883, and jurisdiction for the zones was given to the Interstate Commerce Commission (ICC). Time Zones Being Used in Dependencies of United States Offset They will become active again after the next clock change as Daylight Saving Time begins or ends. The above time zones are used during other parts of the year.
Time Zones Not Currently Being Observed in United States Offset Note: Local time in these time zones changes when Daylight Saving Time begins and ends. In practice, this means that the local time in these time zones changes when DST begins and ends. For example, Eastern Time (ET) refers to Eastern Standard Time (EST) or Eastern Daylight Time (EDT), depending on which is currently in use. The time zones in the contiguous US are often referred to by their generic name, without making a difference between standard time and Daylight Saving Time designations. Generalized Time Zones in United States Time Zone Abbreviation & Name Since Howland Island and Baker Island constitute the world's westernmost landmasses in relation to the International Date Line, making them the last places on Earth where any date exists, they are sometimes assigned a theoretical 12th time zone called Anywhere on Earth (AoE). As neither Hawaii nor the 5 dependencies use Daylight Saving Time (DST), there are only 6 corresponding DST time zones. In addition, Alaska, Hawaii, and 5 US dependencies all have their own time zones.
The contiguous US has 4 standard time zones. However, adding the time zones of 2 uninhabited US territories, Howland Island and Baker Island, brings the total count to 11 time zones. There are 9 time zones by law in the USA and its dependencies. Time Zones Currently Being Used in United States Offset Business Date to Date (exclude holidays).
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