"As of" is a commonly used phrase to indicate a specific point in time. However, there are several synonyms for this phrase that can be used to add variety and clarity to your writing. Some alternatives include "starting from," "effective," and "commencing on." Other options include "from this day forward," "beginning with," and "with effect from." These phrases can be particularly useful when discussing deadlines, contract terms, or policy changes. By using different synonyms for "as of," writers can add a level of precision and specificity to their language that can make their writing more effective and persuasive.