as at is quite common in this context to mean at a specific time/date. "As of" to me means since. "As of" only rarely means "since" in AE, and it still sounds awkward and confusing to me, so I personally avoid this usage. Example: The washing machine was fixed as of last week. The meaning of this sentence is unclear.
When someone sends me a mail that asks my availability on a specific date (for example, 12am on May 23rd), how can I respond it correctly? Specifically, the mail says "Are you available at 12am on May 23rd?" In this case, is it correct if I say "Yes, I will be available on that time" or "No, I...
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Washington Examiner: California makes multimillion-dollar error in Newsom’s Proposition 50 redistricting mailers
Find ham radio clubs in California for licensing, repeaters, and community events. Join local amateur radio associations for support and activities.
Southern California's Premier Repeater System. Intractive map with Analog and Digital mode repeaters in South, Mid and North California
The PAPA System is a member-supported amateur radio network in Southern California with inter-linked FM, D-STAR, DMR, and P25 repeaters. It provides extensive coverage from Mexico to north of Santa Barbara and from the Arizona border to the Pacific Ocean. Known for its reliability and motto