Acuario:
conflicts with the xtensa time.h header that comes with the esp8266 compiler.
This is a known issue. The author of the Time library has moved the code to a file named TimeLib.h in recent versions of the library but left Time.h for backwards compatibility. So all you need to do to fix the issue is to install the current version of the Time library and then change occurrences of:
#include <Time.h>
to:
#include <TimeLib.h>
There is a pull request to make this change to the Timezone library:
but unfortunately JChristensen hasn't merged it.
This issue will also occur for Arduino IDE 1.6.10/Arduino AVR Boards 1.6.12 and newer as well as any other core with time.h on a case insensitive operating system.