we had scheduled for "3:30pm est", not knowing what timezone "est" was, I searched, "est time" on google led me to eastern standard time, which is GMT-5. I asked if what I found what right, he did not answer this question and kept going on the schedule discussion, but my opponent actually meant "eastern time" (GMT-4).
opponent blames the timezone confusion on me but did not answer my question on the timezone, and then blames me for not asking again. sorry that I thought you'd not skip half of my one-line text.