Changed to "daylight" time Sunday? Don't forget to reset your camera's clock

On Sunday, March 10, 2019, most of the U.S. switched to Daylight time from Standard time. Not all of the U.S. makes the change. Arizona, except for the Navajo Nation, Hawaii, American Samoa, Guam, Northern Mariana Islands, Puerto Rico and the U.S. Virgin Islands don't switch to Daylight time in the spring nor back to Standard time in the fall. Their clocks are always set to Standard time.

If you travel internationally, it's important to be aware that the Daylight/Standard time change doesn't universally occur across the globe. More than 100 countries never change to Daylight time and more than a few countries switch between the two on different dates than other countries.

If you change to "daylight" time Sunday, don't forget to reset your camera's clock

On Sunday, March 12, 2015, most of the U.S. will switch to “Daylight Time” from “Standard Time,” most, but definitely not all of the U.S. Arizona, except for the Navajo Nation, Hawaii, American Samoa, Guam, Northern Mariana Islands, Puerto Rico and the U.S. Virgin Islands don't switch to “Daylight Time” in the spring, and back to “Standard Time” in the fall. They stick to “Standard Time” year-round.

The switch between “Daylight” and “Standard” time doesn't universally occur across the globe. More than 100 countries never change to “Daylight Time”, and more than a few countries switch between the two on different dates than other countries.

In Mexico the switch between “Daylight” and “Standard” time can be very confusing for travelers. Mexican border cities near the U.S. typically swap their “times” on the same dates as the U.S., but the remainder of Mexico changes in April and October, not March and November.

Identifying your travel photos when you return home - Part II

As discussed in Part I of this Photo Identification series, one of the most classic problems of the vacation photographer is identifying one's photographs after returning home. Often when you look at your photos weeks after making them, it can be difficult to remember where you took them, and what each image's subject is.

The low-tech identification methods discussed in Part I, such as written journals, marking maps with photo locations, and using identifier photographs work, but many photographers consider them too tedious and time consuming. There are some hi-tech identification methods which are automatic or close to it, but I caution anyone who thinks they are foolproof, to think again.

Each of these hi-tech methods involve GPS (global-positioning system) technology. GPS devices typically identify their position by longitude, latitude, altitude and compass heading, plus date and time.

Today, some digital cameras have built-in GPS units, some cameras are GPS ready, and other cameras can have GPS information added to their photos' exif data, but don't have the capability to embed the information directly themselves. It must be added later, via a computer.