| Cover - shares | 6 Months Ended | |
| Jun. 30, 2023 | Jan. 23, 2024 | |
| Document Type | 10-Q/A | |
| Amendment Flag | true | |
| Amendment Description | This Amendment No. 1 to Form 10-Q (this “Amendment”) amends the Quarterly Report on Form 10-Q of AlphaTime Acquisition Corp (“AlphaTime”, “we”, “us” or “our”) for the quarter ended June 30, 2023, which was originally filed with the Securities and Exchange Commission (the “SEC”) on August 11, 2023 (the “Original Form 10-Q”). The sole purpose of this Amendment is to add to Part I, Item 4, “Controls and Procedures,” a statement reflecting the conclusion of our chief executive officer and chief financial officer that our disclosure controls and procedures were not effective at the reasonable assurance level as of June 30, 2023. This statement was inadvertently omitted from the Original Form 10-Q. The complete text of Part I, Item 4, as amended and restated, is included in this Amendment | |
| Document Quarterly Report | true | |
| Document Transition Report | false | |
| Document Period End Date | Jun. 30, 2023 | |
| Document Fiscal Period Focus | Q2 | |
| Document Fiscal Year Focus | 2023 | |
| Current Fiscal Year End Date | --12-31 | |
| Entity File Number | 001-41584 | |
| Entity Registrant Name | ALPHATIME ACQUISITION CORP | |
| Entity Central Index Key | 0001889106 | |
| Entity Incorporation, State or Country Code | E9 | |
| Entity Address, Address Line One | 500 5th Avenue | |
| Entity Address, Address Line Two | Suite 938 | |
| Entity Address, City or Town | New York | |
| Entity Address, State or Province | NY | |
| Entity Address, Postal Zip Code | 10110 | |
| City Area Code | (347) | |
| Local Phone Number | 627-0058 | |
| Entity Current Reporting Status | Yes | |
| Entity Interactive Data Current | Yes | |
| Entity Filer Category | Non-accelerated Filer | |
| Entity Small Business | true | |
| Entity Emerging Growth Company | true | |
| Elected Not To Use the Extended Transition Period | false | |
| Entity Shell Company | true | |
| Entity Common Stock, Shares Outstanding | 6,873,426 | |
| Units Each Consisting Of One Ordinary Share One Redeemable Warrant And One Right [Member] | ||
| Title of 12(b) Security | Units, each consisting of one ordinary share, one redeemable warrant and one right | |
| Trading Symbol | ATMCU | |
| Security Exchange Name | NASDAQ | |
| Ordinary Shares Par Value 0. 0001 Per Share [Member] | ||
| Title of 12(b) Security | Ordinary Shares, par value $0.0001 per share | |
| Trading Symbol | ATMC | |
| Security Exchange Name | NASDAQ | |
| Warrants Each Whole Warrant Exercisable For One Ordinary Share At Exercise Price Of 11. 50 Per Share [Member] | ||
| Title of 12(b) Security | Warrants, each whole warrant exercisable for one ordinary share at an exercise price of $11.50 per share | |
| Trading Symbol | ATMCW | |
| Security Exchange Name | NASDAQ | |
| Rights Each Right Entitling Holder Thereof To Onetenth Of One Ordinary Share [Member] | ||
| Title of 12(b) Security | Rights, each right entitling the holder thereof to one-tenth of one ordinary share | |
| Trading Symbol | ATMCR | |
| Security Exchange Name | NASDAQ |
